PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B4432Nut,plain,hexagon

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-271-4657 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-271-4657 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-271-4657. Primary manufacturer part number: 1B4432.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nominal Thread Size: 0.500 INCHES IN
  • Thread Series: UNF
  • Bearing Surface Type: WASHER FACED
  • Thread Quantity Per Inch: 20
  • Nut Style: HEXAGON
  • Nut Height: 0.688 INCHES NOMINAL IN
  • Thread Class: 3B
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 5310-00-271-4657, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5310-00-271-4657
Primary Part Number1B4432
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Nominal Thread Size0.500 INCHES IN
Thread SeriesUNF
Bearing Surface TypeWASHER FACED
Thread Quantity Per Inch20
Nut StyleHEXAGON
Nut Height0.688 INCHES NOMINAL IN
Thread Class3B
MaterialSTEEL OVERALL
Width Across Flats0.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-264-4020042431 INTERCHANGEABLE
Nut,plain,hexagon
New Holland Construction
Cross-Reference Index
Part NumberManufacturer
1B4432 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
1B4432 Pettibone Westrac (USA)
038234 Weco Sales Co (USA)
Related Parts
5310-00-264-4020INTERCHANGEABLE
NUT,PLAIN,HEXAGON
042431

Frequently Asked Questions

What is NSN 5310-00-271-4657?

NSN 5310-00-271-4657 is a Nut,plain,hexagon, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-271-4657?

NSN 5310-00-271-4657 has 3 cross-referenced part numbers: 1B4432 (Caterpillar Inc Div Caterpillar Defense), 1B4432 (Pettibone Westrac), 038234 (Weco Sales Co).

What NSN replaces 5310-00-271-4657?

There is 1 known substitute for 5310-00-271-4657: 5310-00-264-4020. Verify interchangeability with system specifications before substitution.

What are the specifications of 1B4432?

Key specifications for 1B4432: Nominal Thread Size: 0.500 INCHES IN; Thread Series: UNF; Bearing Surface Type: WASHER FACED; Thread Quantity Per Inch: 20. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-271-4657 still in active supply?

NSN 5310-00-271-4657 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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