PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-5501/7Cap-Plug,protective,dust and Moi

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-01-026-3251 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-026-3251 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-026-3251. Primary manufacturer part number: MIL-C-5501/7.
Features
  • Cap-Plug,protective,dust and Moi — FSC 5340
  • Open End Inside Diameter: 0.288 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
  • Material: PLASTIC, POLYETHYLENE (PP)
  • Length Under Shoulder: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
  • Closed End Overall Diameter: 0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
  • Material Document and Classification: L-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC SINGLE MATERIAL RESPONSE
  • 7 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Applications requiring Plastic, Polyethylene (pp) construction
General Description

The Cap-Plug,protective,dust and Moi, cataloged under National Stock Number 5340-01-026-3251, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN5340-01-026-3251
Primary Part NumberMIL-C-5501/7
Item NameCap-Plug,protective,dust and Moi
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Open End Inside Diameter0.288 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
MaterialPLASTIC, POLYETHYLENE (PP)
Length Under Shoulder0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Closed End Overall Diameter0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
Material Document and ClassificationL-P-390, TYPE 1, CLASS L, GRADE 1 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Unit of IssueHD
Verified Substitutes 12
No Item Name Available
5340-00-286-3506NAS834-117 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-286-3507NAS834-151 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-290-725115 SUCCESSOR
Cap-Plug,protective,dust and Moi
Allison Transmission Inc Dba Allison Transmission, Inc
Cap-Plug,protective,dust and Moi
5340-00-726-2214NAS834-69 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-882-5070NAS834-67 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-043-7078NAS834-80 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-079-7800NAS834-96 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cap-Plug,protective,dust and Moi
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
M5501/7-F6 Lockheed Martin Uk Ltd (GBR)
5340PL1243242 Jednolity Indeks Materialowy - Uniform Material Index (POL)
NASS834-36 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5340PL2149710 Jednolity Indeks Materialowy - Uniform Material Index (POL)
5340PL1380736 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M5501/7-F6 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5340-00-290-0974SUCCESSOR
NO ITEM NAME AVAILABLE
5340-00-286-3506SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-117
5340-00-286-3507SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-151
5340-00-290-7251SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
15
5340-00-290-7263SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
5340-00-726-2214SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-69
5340-00-882-5070SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-67
5340-01-043-7078SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-80
5340-01-079-7800SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-96
5340-01-085-4234SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
5340-01-104-0372SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-64
5340-01-104-0373SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-33

Frequently Asked Questions

What is NSN 5340-01-026-3251?

NSN 5340-01-026-3251 is a Cap-Plug,protective,dust and Moi, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5340 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5340-01-026-3251?

NSN 5340-01-026-3251 has 7 cross-referenced part numbers: MIL-C-5501/7 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5501/7-F6 (Lockheed Martin Uk Ltd), 5340PL1243242 (Jednolity Indeks Materialowy - Uniform Material Index), NASS834-36 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 5340PL2149710 (Jednolity Indeks Materialowy - Uniform Material Index) and 2 more.

What NSN replaces 5340-01-026-3251?

There are 12 known substitutes for 5340-01-026-3251: 5340-00-290-0974, 5340-00-286-3506, 5340-00-286-3507 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-5501/7?

Key specifications for MIL-C-5501/7: Open End Inside Diameter: 0.288 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN; Material: PLASTIC, POLYETHYLENE (PP); Length Under Shoulder: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN; Closed End Overall Diameter: 0.417 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5340-01-026-3251 still in active supply?

NSN 5340-01-026-3251 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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