PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23AX332Nut,self-Locking,castellated,hex

Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations · NSN 5310-01-553-5943 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-553-5943 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-553-5943. Primary manufacturer part number: 23AX332.
Features
  • Nut,self-Locking,castellated,hex — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 0.500 INCHES NOMINAL IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nut Height: 0.344 INCHES NOMINAL IN
  • Hole Configuration Style: CONFIGURATION A
  • Nut Style: CASTELLATED, HEXAGON
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-01-553-5943, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-553-5943
Primary Part Number23AX332
Item NameNut,self-Locking,castellated,hex
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations
StatusACTIVE
Thread DirectionRIGHT-HAND
Width Across Flats0.500 INCHES NOMINAL IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nut Height0.344 INCHES NOMINAL IN
Hole Configuration StyleCONFIGURATION A
Nut StyleCASTELLATED, HEXAGON
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nominal Thread Size0.312 INCHES IN
Bearing Surface TypeFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-411-1937 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
10000960 General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
25166764 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS)
23AX332 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS)
23AX332 PRIMARY Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations (USA)
Related Parts
5961-00-411-1937INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5310-01-553-5943?

NSN 5310-01-553-5943 is a Nut,self-Locking,castellated,hex, manufactured by Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-553-5943?

NSN 5310-01-553-5943 has 4 cross-referenced part numbers: 10000960 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 25166764 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 23AX332 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), 23AX332 (Mack Trucks, Inc. Dba Macungie Operations Div Lehigh Valley Operations).

What NSN replaces 5310-01-553-5943?

There is 1 known substitute for 5310-01-553-5943: 5961-00-411-1937. Verify interchangeability with system specifications before substitution.

What are the specifications of 23AX332?

Key specifications for 23AX332: Thread Direction: RIGHT-HAND; Width Across Flats: 0.500 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Part Name Assigned by Controlling Agency: HEX LOCK NUTS. 10 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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