PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-5501/3Cap,protective,dust and Moisture

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-01-146-9730 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-146-9730 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-146-9730. Primary manufacturer part number: MIL-C-5501/3.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Round Cap Outside Surface Condition: RIBBED
  • Surface Treatment: CHROMATE
  • Material: PLASTIC
  • Material Document and Classification: L-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
  • Design Type: THREADED
  • Thread Class: 2B
  • Thread Size and Series/type Designator: 0.500-20 UNS
Applications
  • Applications requiring Plastic construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-146-9730, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN5340-01-146-9730
Primary Part NumberMIL-C-5501/3
Item NameCap,protective,dust and Moisture
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Round Cap Outside Surface ConditionRIBBED
Surface TreatmentCHROMATE
MaterialPLASTIC
Material Document and ClassificationL-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE
Design TypeTHREADED
Thread Class2B
Thread Size and Series/type Designator0.500-20 UNS
Tube Outside Diameter for Which Designed0.312 INCHES NOMINAL 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
MIL-C-5501/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5501/3-R5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS835-5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5340-00-597-4502 Cap,protective,dust and Moisture
5340-00-682-2119SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-804-0767SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-804-0773SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-808-2181SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-030-4466SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-138-2166SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-138-2168SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-146-4564SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-195-8053SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-212-1295SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-01-212-9411SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE

Frequently Asked Questions

What is NSN 5340-01-146-9730?

NSN 5340-01-146-9730 is a Cap,protective,dust and Moisture, 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: active.

What are the part numbers for NSN 5340-01-146-9730?

NSN 5340-01-146-9730 has 3 cross-referenced part numbers: MIL-C-5501/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5501/3-R5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS835-5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5340-01-146-9730?

There are 12 known substitutes for 5340-01-146-9730: 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 MIL-C-5501/3?

Key specifications for MIL-C-5501/3: Round Cap Outside Surface Condition: RIBBED; Surface Treatment: CHROMATE; Material: PLASTIC; Material Document and Classification: L-P-390, TYPE 1, CLASS L, GRADE 2 FED SPEC SINGLE MATERIAL RESPONSE. 8 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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