PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8331638Nut,self-Locking,cap

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5310-00-569-8962 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-569-8962 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-569-8962. Primary manufacturer part number: 8331638.
Features
  • Nut,self-Locking,cap — FSC 5310
  • Width Across Flats: 1.000 INCHES NOMINAL IN
  • Thread Class: 2B
  • Bearing Surface Type: WASHER FACED
  • Nominal Thread Size: 0.625 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Quantity Per Inch: 11
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Locking Insert construction
General Description

The Nut,self-Locking,cap, cataloged under National Stock Number 5310-00-569-8962, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-569-8962
Primary Part Number8331638
Item NameNut,self-Locking,cap
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Width Across Flats1.000 INCHES NOMINAL IN
Thread Class2B
Bearing Surface TypeWASHER FACED
Nominal Thread Size0.625 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch11
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
MaterialPLASTIC POLYAMIDE NYLON LOCKING INSERT
Nut StyleCAP
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL EXCEPT INSERT
Nut Height1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-583-211215962-00 INTERCHANGEABLE
Nut,special
Itt Marlow a Unit of Itt Pumps and Compressors Div
Cross-Reference Index
Part NumberManufacturer
8331638 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
VP250 PRIMARY Mclaughlin Body Co (USA)
Related Parts
5310-00-583-2112INTERCHANGEABLE
NUT,SPECIAL
15962-00

Frequently Asked Questions

What is NSN 5310-00-569-8962?

NSN 5310-00-569-8962 is a Nut,self-Locking,cap, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-569-8962?

NSN 5310-00-569-8962 has 2 cross-referenced part numbers: 8331638 (U S Army Tank Automotive Command Amsta-Im-Mm), VP250 (Mclaughlin Body Co).

What NSN replaces 5310-00-569-8962?

There is 1 known substitute for 5310-00-569-8962: 5310-00-583-2112. Verify interchangeability with system specifications before substitution.

What are the specifications of 8331638?

Key specifications for 8331638: Width Across Flats: 1.000 INCHES NOMINAL IN; Thread Class: 2B; Bearing Surface Type: WASHER FACED; Nominal Thread Size: 0.625 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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