PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS834-33Cap-Plug,protective,dust and Moi

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5340-01-104-0373 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-104-0373 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-104-0373. Primary manufacturer part number: NAS834-33.
Features
  • Cap-Plug,protective,dust and Moi — FSC 5340
  • Material Document and Classification: L-P-390, TYPE 1, GRADE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE
  • Material: PLASTIC, POLYETHYLENE (PP)
  • Closed End Overall Diameter: 0.386 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
  • Length Under Shoulder: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
  • Open End Inside Diameter: 0.257 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
  • 10 verified cross-references
  • Primary manufacturer: National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Applications
  • Applications requiring Plastic, Polyethylene (pp) construction
General Description

The Cap-Plug,protective,dust and Moi, cataloged under National Stock Number 5340-01-104-0373, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: HD.

Technical Specifications
ParameterValue
NSN5340-01-104-0373
Primary Part NumberNAS834-33
Item NameCap-Plug,protective,dust and Moi
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Material Document and ClassificationL-P-390, TYPE 1, GRADE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE
MaterialPLASTIC, POLYETHYLENE (PP)
Closed End Overall Diameter0.386 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
Length Under Shoulder0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Open End Inside Diameter0.257 INCHES MINIMUM AND 0.277 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5340-00-264-1205
HAZMATNo
Unit of IssueHD
Verified Substitutes 12
Cap-Plug,protective,dust and Moi
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
MIL-C-5501/7 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS834-33 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MILC52078 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5501/7-F5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
WW2X Caplugs Llc Dba Mokon Div Caplugs (USA)
NAS816-33 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NAS834 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
N120WW2X E F P Industrie (FRA)
WW2X Bio-Rad (FRA)
N120WW2X Bio-Rad (FRA)
Related Parts
SUCCESSOR 5340-00-264-1205 Cap-Plug,protective,dust and Moi
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 5340-01-104-0373?

NSN 5340-01-104-0373 is a Cap-Plug,protective,dust and Moi, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-104-0373?

NSN 5340-01-104-0373 has 10 cross-referenced part numbers: MIL-C-5501/7 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS834-33 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MILC52078 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5501/7-F5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), WW2X (Caplugs Llc Dba Mokon Div Caplugs) and 5 more.

What NSN replaces 5340-01-104-0373?

There are 12 known substitutes for 5340-01-104-0373: 5340-00-264-1205, 5340-00-286-3511, 5340-00-290-7213 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS834-33?

Key specifications for NAS834-33: Material Document and Classification: L-P-390, TYPE 1, GRADE 1, CLASS L FED SPEC SINGLE MATERIAL RESPONSE; Material: PLASTIC, POLYETHYLENE (PP); Closed End Overall Diameter: 0.386 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN; Length Under Shoulder: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-01-104-0373 still in active supply?

NSN 5340-01-104-0373 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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