PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN121501Nut,plain,hexagon

Sae International Dba Sae International · NSN 5310-00-639-7537 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-639-7537 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-639-7537. Primary manufacturer part number: AN121501.
Features
  • Nut,plain,hexagon — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.190 INCHES IN
  • Thread Series: UNF
  • Hardness Rating: 25.0 ROCKWELL C MINIMUM
  • Thread Quantity Per Inch: 32
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-639-7537, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-639-7537
Primary Part NumberAN121501
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Thread DirectionRIGHT-HAND
Nominal Thread Size0.190 INCHES IN
Thread SeriesUNF
Hardness Rating25.0 ROCKWELL C MINIMUM
Thread Quantity Per Inch32
Bearing Surface TypeWASHER FACED
Nut StyleHEXAGON
Thread Class3B
Nut Height0.141 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
Width Across Flats0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-282-4779 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-298-9039175944 INTERCHANGEABLE
Nut,plain,hexagon
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
Cross-Reference Index
Part NumberManufacturer
SAE-AS121501THRUAS121525 Sae International Dba Sae International (USA)
AN121501 PRIMARY Sae International Dba Sae International (USA)
AN121501 Society of Automotive Engineers Inc (USA)
AN360-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5310-00-282-4779INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-298-9039INTERCHANGEABLE
NUT,PLAIN,HEXAGON
175944

Frequently Asked Questions

What is NSN 5310-00-639-7537?

NSN 5310-00-639-7537 is a Nut,plain,hexagon, manufactured by Sae International Dba Sae International, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-639-7537?

NSN 5310-00-639-7537 has 4 cross-referenced part numbers: SAE-AS121501THRUAS121525 (Sae International Dba Sae International), AN121501 (Sae International Dba Sae International), AN121501 (Society of Automotive Engineers Inc), AN360-3 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5310-00-639-7537?

There are 2 known substitutes for 5310-00-639-7537: 5310-00-282-4779, 5310-00-298-9039. Verify interchangeability with system specifications before substitution.

What are the specifications of AN121501?

Key specifications for AN121501: Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.190 INCHES IN. 12 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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