PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC5501Cap,protective,dust and Moisture

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5340-00-298-9419 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-298-9419 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-298-9419. Primary manufacturer part number: MILC5501.
Features
  • Cap,protective,dust and Moisture — FSC 5340
  • Thread Size and Series/type Designator: 1/2-20 UNF
  • Material: STEEL
  • Nondefinitive Spec/std Data: 2 TYPE AND 5 SIZE
  • Overall Diameter: 1.000 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM
  • Thread Class: 3B
  • Design Type: THREADED
Applications
  • Applications requiring Steel construction
General Description

The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-00-298-9419, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN5340-00-298-9419
Primary Part NumberMILC5501
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
Thread Size and Series/type Designator1/2-20 UNF
MaterialSTEEL
Nondefinitive Spec/std Data2 TYPE AND 5 SIZE
Overall Diameter1.000 INCHES NOMINAL IN
Surface TreatmentCADMIUM
Thread Class3B
Design TypeTHREADED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Plug,protective,dust and Moistur
Plug,protective,dust and Moistur
5340-00-514-2434NAS844-12 SUCCESSOR
Cap,protective,dust and Moisture
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-00-531-4008NAS834-264 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cap,protective,dust and Moisture
5340-00-727-4778CD12 SUCCESSOR
Cap,protective,dust and Moisture
Caplugs Llc Dba Mokon Div Caplugs
5340-01-039-0334NAS834-75 SUCCESSOR
Cap-Plug,protective,dust and Moi
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-039-3978NAS836-6 SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-044-0984NAS844-32 SUCCESSOR
Cap,protective,dust and Moisture
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5340-01-073-5434NAS845-7 SUCCESSOR
Plug,protective,dust and Moistur
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MILC5501 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5340-00-286-4146SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-00-286-4161SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-00-514-2434SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
NAS844-12
5340-00-531-4008SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-264
5340-00-597-4502SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
5340-00-727-4778SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
CD12
5340-01-039-0334SUCCESSOR
CAP-PLUG,PROTECTIVE,DUST AND MOI
NAS834-75
5340-01-039-3978SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS836-6
5340-01-044-0984SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
NAS844-32
5340-01-073-5434SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS845-7
5340-01-146-9729SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
5340-01-154-2314SUCCESSOR
PLUG,PROTECTIVE,DUST AND MOISTUR
NAS838-4

Frequently Asked Questions

What is NSN 5340-00-298-9419?

NSN 5340-00-298-9419 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 5340-00-298-9419?

NSN 5340-00-298-9419 has 1 cross-referenced part number: MILC5501 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5340-00-298-9419?

There are 12 known substitutes for 5340-00-298-9419: 5340-00-286-4146, 5340-00-286-4161, 5340-00-514-2434 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC5501?

Key specifications for MILC5501: Thread Size and Series/type Designator: 1/2-20 UNF; Material: STEEL; Nondefinitive Spec/std Data: 2 TYPE AND 5 SIZE; Overall Diameter: 1.000 INCHES NOMINAL IN. 7 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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