PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BBSX1Nut,self-Locking,hexagon

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5310-00-050-3622 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-050-3622 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-050-3622. Primary manufacturer part number: BBSX1.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Surface Treatment: CADMIUM OR ZINC NUT
  • Thread Direction: RIGHT-HAND
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.125 INCHES IN
  • Thread Quantity Per Inch: 40
  • Material Document and Classification: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE NUT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1212 Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-050-3622, 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 3 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
NSN5310-00-050-3622
Primary Part NumberBBSX1
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Nut StyleHEXAGON
Surface TreatmentCADMIUM OR ZINC NUT
Thread DirectionRIGHT-HAND
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.125 INCHES IN
Thread Quantity Per Inch40
Material Document and ClassificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE NUT
Thread Class2B
Nut Height0.141 INCHES NOMINAL IN
Width Across Flats0.250 INCHES NOMINAL IN
MaterialSTEEL COMP 1212 NUT
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-01-101-6854AS-2953/SPS-55 INTERCHANGEABLE
Antenna
Joint Electronics Type Designation System
Cross-Reference Index
Part NumberManufacturer
BBSX1 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
503622 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
5310000503622 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
5985-01-101-6854INTERCHANGEABLE
ANTENNA
AS-2953/SPS-55

Frequently Asked Questions

What is NSN 5310-00-050-3622?

NSN 5310-00-050-3622 is a Nut,self-Locking,hexagon, 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 5310-00-050-3622?

NSN 5310-00-050-3622 has 3 cross-referenced part numbers: BBSX1 (U S Army Tank Automotive Command Amsta-Im-Mm), 503622 (U S Army Tank Automotive Command Amsta-Im-Mm), 5310000503622 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales).

What NSN replaces 5310-00-050-3622?

There is 1 known substitute for 5310-00-050-3622: 5985-01-101-6854. Verify interchangeability with system specifications before substitution.

What are the specifications of BBSX1?

Key specifications for BBSX1: Nut Style: HEXAGON; Surface Treatment: CADMIUM OR ZINC NUT; Thread Direction: RIGHT-HAND; Thread Series: UNIFIED NATIONAL COARSE (UNC). 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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