PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM90725Screw,cap,hexagon Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-638-9084 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-638-9084 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-638-9084. Primary manufacturer part number: NASM90725.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Thread Class: 2A A
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Quantity Per Inch: 13
  • Minimum Tensile Strength: 120000 POUNDS PER SQUARE INCH LBS
  • Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-638-9084, is classified within Federal Supply Class 5305 (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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-638-9084
Primary Part NumberNASM90725
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Nominal Thread Diameter0.500 INCHES IN
Thread Class2A A
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hardness Rating23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Thread Quantity Per Inch13
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Fastener Length3.500 INCHES NOMINAL IN
Thread Length1.250 INCHES MINIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleHEXAGON
MaterialSTEEL OVERALL
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Surface TreatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-017-9788 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-018-0076 INTERCHANGEABLE
Bolt,machine
5305-00-543-2865 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-550-1311 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-577-5453 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-685-3193 INTERCHANGEABLE
Screw,cap,hexagon Head
5985-01-599-1874310437 INTERCHANGEABLE
Case,mast
Mastsystem Int'l Oy
Cross-Reference Index
Part NumberManufacturer
NASM90725 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
D9578-7-30 Met-Pro Corporation (USA)
MS35297-121 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
800628 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
FFS85AMEND2TYPE2STYLE10PGRADE5 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-017-9788INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-018-0076INTERCHANGEABLE
BOLT,MACHINE
5305-00-543-2865INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-550-1311INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-577-5453INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-685-3193INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5985-01-599-1874INTERCHANGEABLE
CASE,MAST
310437

Frequently Asked Questions

What is NSN 5305-00-638-9084?

NSN 5305-00-638-9084 is a Screw,cap,hexagon Head, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-638-9084?

NSN 5305-00-638-9084 has 5 cross-referenced part numbers: NASM90725 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), D9578-7-30 (Met-Pro Corporation), MS35297-121 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 800628 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament), FFS85AMEND2TYPE2STYLE10PGRADE5 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-638-9084?

There are 7 known substitutes for 5305-00-638-9084: 5305-00-017-9788, 5306-00-018-0076, 5305-00-543-2865 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM90725?

Key specifications for NASM90725: Nominal Thread Diameter: 0.500 INCHES IN; Thread Class: 2A A; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL. 15 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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