PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS835N6ACap,protective,dust and Moisture

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5340-01-371-9555 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-371-9555 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-371-9555. Primary manufacturer part number: NAS835N6A.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN
  • Round Cap Outside Surface Condition: KNURLED
  • Thread Class: 3B
  • Surface Treatment Document and Classification: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
  • Design Type: THREADED
  • Connector Nominal Thread Size for Which Designed: 0.5625 INCHES IN
  • Surface Treatment: ANODIZE
Applications
  • Applications requiring Aluminum Alloy 3003 construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-371-9555, 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 10 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
NSN5340-01-371-9555
Primary Part NumberNAS835N6A
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Tube Outside Diameter for Which Designed0.375 INCHES NOMINAL IN
Round Cap Outside Surface ConditionKNURLED
Thread Class3B
Surface Treatment Document and ClassificationMIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A
Design TypeTHREADED
Connector Nominal Thread Size for Which Designed0.5625 INCHES IN
Surface TreatmentANODIZE
MaterialALUMINUM ALLOY 3003
Thread Size and Series/type Designator0.562-18 UNF
Inside Diameter Length0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5340-00-597-4502
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cap,protective,dust and Moisture
Cross-Reference Index
Part NumberManufacturer
M5501/3-6G Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-5501/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS835N6A PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NAS835 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
SUCCESSOR 5340-00-597-4502 Cap,protective,dust and Moisture
5340-00-682-2119SUCCESSOR
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5340-00-804-0767SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-804-0773SUCCESSOR
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5340-00-808-2181SUCCESSOR
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5340-01-030-4466SUCCESSOR
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5340-01-138-2166SUCCESSOR
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5340-01-138-2168SUCCESSOR
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5340-01-146-4564SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-195-8053SUCCESSOR
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5340-01-212-1295SUCCESSOR
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5340-01-212-9411SUCCESSOR
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Frequently Asked Questions

What is NSN 5340-01-371-9555?

NSN 5340-01-371-9555 is a Cap,protective,dust and Moisture, 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: active.

What are the part numbers for NSN 5340-01-371-9555?

NSN 5340-01-371-9555 has 4 cross-referenced part numbers: M5501/3-6G (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-5501/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS835N6A (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NAS835 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5340-01-371-9555?

There are 12 known substitutes for 5340-01-371-9555: 5340-00-597-4502, 5340-00-682-2119, 5340-00-804-0767 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS835N6A?

Key specifications for NAS835N6A: Tube Outside Diameter for Which Designed: 0.375 INCHES NOMINAL IN; Round Cap Outside Surface Condition: KNURLED; Thread Class: 3B; Surface Treatment Document and Classification: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A. 10 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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