PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AES01F375500FAW9A91Screw,cap,hexagon Head

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5305-00-269-3231 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-269-3231 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-269-3231. Primary manufacturer part number: AES01F375500FAW9A91.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Fastener Length: 0.500 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Minimum Yield Strength: 120000 POUNDS PER SQUARE INCH LBS
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL OVERALL
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 5305-00-269-3231, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-269-3231
Primary Part NumberAES01F375500FAW9A91
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Thread Class2A A
Fastener Length0.500 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Minimum Yield Strength120000 POUNDS PER SQUARE INCH LBS
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Material Document and ClassificationSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Surface TreatmentZINC AND CHROMATE OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 8 GRADE
Surface Treatment Document and ClassificationASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread Length0.500 INCHES MAXIMUM IN
Thread Quantity Per Inch24
Head StyleHEXAGON
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Nominal Thread Diameter0.375 INCHES IN
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5305-00-269-2798MS90726-55 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AES01F375500FAW9A91 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
AES01F500500WA6A91 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
B1821BH038F050N American National Standards Institute Incorporated Dba American National Standards Institute (USA)
MS90727-55 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AES01F500500WA6A81 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
MS90726-55 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-269-2798INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS90726-55

Frequently Asked Questions

What is NSN 5305-00-269-3231?

NSN 5305-00-269-3231 is a Screw,cap,hexagon Head, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-269-3231?

NSN 5305-00-269-3231 has 7 cross-referenced part numbers: FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC), AES01F375500FAW9A91 (American National Standards Institute Incorporated Dba American National Standards Institute), AES01F500500WA6A91 (American National Standards Institute Incorporated Dba American National Standards Institute), B1821BH038F050N (American National Standards Institute Incorporated Dba American National Standards Institute), MS90727-55 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 5305-00-269-3231?

There is 1 known substitute for 5305-00-269-3231: 5305-00-269-2798. Verify interchangeability with system specifications before substitution.

What are the specifications of AES01F375500FAW9A91?

Key specifications for AES01F375500FAW9A91: Thread Class: 2A A; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Minimum Yield Strength: 120000 POUNDS PER SQUARE INCH LBS. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-269-3231 still in active supply?

NSN 5305-00-269-3231 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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