PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501Cap-Plug,protective,dust and Moi

Protective Closures Co Inc · NSN 5340-00-290-7228 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-290-7228 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-290-7228. Primary manufacturer part number: 501.
Features
  • Cap-Plug,protective,dust and Moi — FSC 5340
  • Closed End Overall Diameter: 3.325 INCHES NOMINAL IN
  • Open End Inside Diameter: 3.377 INCHES NOMINAL IN
  • Length Under Shoulder: 0.750 INCHES NOMINAL IN
  • Material: PLASTIC
  • 4 verified cross-references
  • Primary manufacturer: Protective Closures Co Inc
Applications
  • Applications requiring Plastic construction
General Description

The Cap-Plug,protective,dust and Moi, cataloged under National Stock Number 5340-00-290-7228, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Protective Closures Co Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-290-7228
Primary Part Number501
Item NameCap-Plug,protective,dust and Moi
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerProtective Closures Co Inc
StatusACTIVE
Closed End Overall Diameter3.325 INCHES NOMINAL IN
Open End Inside Diameter3.377 INCHES NOMINAL IN
Length Under Shoulder0.750 INCHES NOMINAL IN
MaterialPLASTIC
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6130-00-139-8256 (501)
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
6130-00-139-8256501 SUCCESSOR
Power Supply
Ametek Programmable Power, Inc.
Cap-Plug,protective,dust and Moi
5340-00-290-721317 SUCCESSOR
Cap-Plug,protective,dust and Moi
Caplugs Llc Dba Mokon Div Caplugs
5340-00-290-72150S025262 SUCCESSOR
Cap-Plug,protective,dust and Moi
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5340-00-290-72217 SUCCESSOR
Cap-Plug,protective,dust and Moi
Caplugs Llc Dba Mokon Div Caplugs
5340-00-290-7226T-96A SUCCESSOR
Cap-Plug,protective,dust and Moi
Caplugs Llc Dba Mokon Div Caplugs
5340-00-290-722953 SUCCESSOR
Cap-Plug,protective,dust and Moi
Caplugs Llc Dba Mokon Div Caplugs
Cap-Plug,protective,dust and Moi
5340-00-290-72341296631-2 SUCCESSOR
Plug,protective,dust and Moistur
Honeywell Intl Inc Defense Avionics Systems
5340-00-290-723624S SUCCESSOR
Cap-Plug,protective,dust and Moi
Caplugs Llc Dba Mokon Div Caplugs
Cross-Reference Index
Part NumberManufacturer
501 Protective Closures Co Inc (USA)
MILC52078 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS834-322 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SIZE501 Protective Closures Co Inc (USA)
Related Parts
SUCCESSOR 6130-00-139-8256 Power Supply · 501
5340-00-286-3511SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
5340-00-290-7213SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
17
5340-00-290-7215SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
0S025262
5340-00-290-7221SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
7
5340-00-290-7226SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
T-96A
5340-00-290-7229SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
53
5340-00-290-7230SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
5340-00-290-7234SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
1296631-2
5340-00-290-7236SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
24S
5340-00-290-7239SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
SIZE220
5340-00-290-7241SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
819356-1

Frequently Asked Questions

What is NSN 5340-00-290-7228?

NSN 5340-00-290-7228 is a Cap-Plug,protective,dust and Moi, manufactured by Protective Closures Co Inc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-290-7228?

NSN 5340-00-290-7228 has 4 cross-referenced part numbers: 501 (Protective Closures Co Inc), MILC52078 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS834-322 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SIZE501 (Protective Closures Co Inc).

What NSN replaces 5340-00-290-7228?

There are 12 known substitutes for 5340-00-290-7228: 6130-00-139-8256, 5340-00-286-3511, 5340-00-290-7213 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501?

Key specifications for 501: Closed End Overall Diameter: 3.325 INCHES NOMINAL IN; Open End Inside Diameter: 3.377 INCHES NOMINAL IN; Length Under Shoulder: 0.750 INCHES NOMINAL IN; Material: PLASTIC. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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