Circular MIL Spec Tools, Hardware & Accessories

.hide-partial { max-height: none; } .show-more { display: none; }

MIL-DTL-38999 III Protective Plug Covers

Glenair MIL-DTL-38999 III Protective Plug Covers are available for almost all threaded MIL-DTL-38999 Series III circular connectors. These covers are fully compliant with the MIL-DTL-38999 specification, are available in shell sizes from 9 to 25, and come in various finishes. Glenair MIL-DTL-38999 III Protective Plug Covers are ideal for applications such as avionics, satellites, sensor and control systems, mission computers, and communication systems.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 71

Applied Filters:

MIL Type

Type

Series

For Use With

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	MIL Type	Product	Type	Series	For Use With	Packaging
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W15R Glenair 1: $261.01 137In Stock	Mfr. Part # D38999/33W15R Mouser Part # 654-D38999/33W15R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	137In Stock	$261.01 $239.22 $222.33 $180.55	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT D38999/33M19R Glenair 1: $185.52 7In Stock	Mfr. Part # D38999/33M19R Mouser Part # 654-D3899933M19R	Glenair	Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT Learn More about Glenair 38999IIIcovers	Datasheet	7In Stock	$185.52	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W17R Glenair 1: $331.42 28In Stock	Mfr. Part # D38999/33W17R Mouser Part # 654-D38999/33W17R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	28In Stock	$331.42 $286.31 $234.70	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W9R Glenair 1: $225.11 19In Stock	Mfr. Part # D38999/33W9R Mouser Part # 654-D38999/33W9R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	19In Stock	$225.11 $208.02	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/32W23R Glenair 1: $286.81 6In Stock	Mfr. Part # D38999/32W23R Mouser Part # 654-D38999/32W23R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	6In Stock	$286.81	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	D38999 TV Series Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M11N Glenair 1: $124.74 10In Stock	Mfr. Part # D38999/33M11N Mouser Part # 654-D38999/33M11N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$124.74	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W11R Glenair 1: $771.58 14In Stock	Mfr. Part # D38999/33W11R Mouser Part # 654-D38999/33W11R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	14In Stock	$771.58 $409.40 View Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W13R Glenair 1: $312.45 10In Stock	Mfr. Part # D38999/33W13R Mouser Part # 654-D38999/33W13R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$312.45 $284.42 $281.06 $253.64 View Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M25N Glenair 1: $239.18 8In Stock	Mfr. Part # D38999/33M25N Mouser Part # 654-D38999/33M25N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	8In Stock	$239.18 $239.10 $239.04 View $238.94 $200.97 Quote	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT D38999/33J11R Glenair 1: $184.74 10In Stock	Mfr. Part # D38999/33J11R Mouser Part # 654-D3899933J11R	Glenair	Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$184.74 $165.58 $154.69 $116.40 View $111.42 $111.40 $111.39 Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M23R Glenair 1: $262.03 4In Stock	Mfr. Part # D38999/33M23R Mouser Part # 654-D38999/33M23R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	4In Stock	$262.03 $242.19 View $233.86 $175.90 $166.18 $164.68 Quote	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M17N Glenair 1: $174.50 8In Stock	Mfr. Part # D38999/33M17N Mouser Part # 654-D38999/33M17N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	8In Stock	$174.50 $174.47 $174.45 View $174.44 $174.42 $174.40 Quote	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT D38999/33K9N Glenair 1: $760.25 9In Stock	Mfr. Part # D38999/33K9N Mouser Part # 654-D3899933K9N	Glenair	Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE CVR RCEPT Learn More about Glenair 38999IIIcovers	Datasheet	9In Stock	$760.25 $659.29 $636.64 View $473.87 $327.60 $206.03 Quote	Min.: 1 Mult.: 1			Accessories	Receptacle Cover	D38999/33
Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE COVERS - PROTECTIVE COVERS D38999/32W21R Glenair 1: $442.91 10In Stock	Mfr. Part # D38999/32W21R Mouser Part # 631-D38999/32W21R	Glenair	Circular MIL Spec Tools, Hardware & Accessories PROTECTIVE COVERS - PROTECTIVE COVERS Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$442.91	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	D38999 TV Series Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33F17R Glenair 1: $480.17 8In Stock	Mfr. Part # D38999/33F17R Mouser Part # 654-D38999/33F17R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	8In Stock	Cut Tape $480.17 $437.82 $437.63 View Quote	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	Shell Size 17 Connectors	Reel
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/32W13R Glenair 1: $195.75 8In Stock	Mfr. Part # D38999/32W13R Mouser Part # 654-D38999/32W13R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	8In Stock	$195.75	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/32W17N Glenair 1: $372.57 10In Stock	Mfr. Part # D38999/32W17N Mouser Part # 654-D38999/32W17N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$372.57 $372.43 $372.27 $325.54 $225.59	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/32W21N Glenair 1: $349.50 10In Stock	Mfr. Part # D38999/32W21N Mouser Part # 654-D38999/32W21N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$349.50 $252.22	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	D38999 TV Series Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/32W9R Glenair 1: $193.76 15In Stock	Mfr. Part # D38999/32W9R Mouser Part # 654-D38999/32W9R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	15In Stock	$193.76 $133.94	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Plug Cover	D38999/32	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M17R Glenair 1: $189.65 31In Stock	Mfr. Part # D38999/33M17R Mouser Part # 654-D38999/33M17R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	31In Stock	$189.65 $151.37	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33M25R Glenair 1: $185.18 10In Stock	Mfr. Part # D38999/33M25R Mouser Part # 654-D38999/33M25R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$185.18 View $144.68 $144.65 Quote	Min.: 1 Mult.: 1		MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W11N Glenair 1: $335.66 8In Stock	Mfr. Part # D38999/33W11N Mouser Part # 654-D38999/33W11N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	8In Stock	$335.66 $292.22 $254.13 $211.76 View $211.23 $211.08 Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories G/A 38999 13 RCP CAP D38999/33W13N Glenair 1: $1,058.42 10In Stock	Mfr. Part # D38999/33W13N Mouser Part # 654-D38999/33W13N	Glenair	Circular MIL Spec Tools, Hardware & Accessories G/A 38999 13 RCP CAP Learn More about Glenair 38999IIIcovers	Datasheet	10In Stock	$1,058.42 $864.38 Quote Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W15N Glenair 1: $505.89 A tariff of 11% may be applied if shipping to the United States. 16In Stock 17Expected 10/27/2026	Mfr. Part # D38999/33W15N Mouser Part # 654-D38999/33W15N	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	16In Stock 17Expected 10/27/2026	$505.89 $473.27 $457.02 $364.35 View $188.17 $184.74 Quote A tariff of 11% may be applied if shipping to the United States.	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors
Circular MIL Spec Tools, Hardware & Accessories DUST CAP D38999/33W19R Glenair 1: $787.81 82In Stock	Mfr. Part # D38999/33W19R Mouser Part # 654-D38999/33W19R	Glenair	Circular MIL Spec Tools, Hardware & Accessories DUST CAP Learn More about Glenair 38999IIIcovers	Datasheet	82In Stock	$787.81 $772.16 View Quote	Min.: 1 Mult.: 1	No	MIL-DTL-38999 III	Accessories	Receptacle Cover	D38999/33	MIL-DTL-38999 III Connectors

MIL-DTL-38999 III Protective Plug Covers

Applied Filters:

Customer Service Office

Company

Resources

Support