PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B4331Nut,plain,hexagon

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-022-0081 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-022-0081 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-022-0081. Primary manufacturer part number: 1B4331.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Height: 0.641 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 10
  • Nominal Thread Size: 0.750 INCHES IN
  • Bearing Surface Type: WASHER FACED
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Material Document and Classification: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
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 5310-00-022-0081, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-022-0081
Primary Part Number1B4331
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Nut Height0.641 INCHES NOMINAL IN
Thread Quantity Per Inch10
Nominal Thread Size0.750 INCHES IN
Bearing Surface TypeWASHER FACED
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Material Document and ClassificationQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data80204-B18-2-2-65 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Width Across Flats1.125 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Thread Class2B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-265-9589 INTERCHANGEABLE
Nut,plain,hexagon
5360-00-327-081464049 INTERCHANGEABLE
Spring,helical,compression
Hiller Aircraft Corporation
5950-00-344-83136187-15 INTERCHANGEABLE
Transformer,power
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
3110-00-739-529422008-1 INTERCHANGEABLE
Bearing
Safe Flight Instrument, Llc
6665-00-887-9542640-49 INTERCHANGEABLE
Edison Thermostat
Unicontrol Inc Hays Cleveland Div
5310-00-932-1176 INTERCHANGEABLE
Nut,special
5355-01-122-476422008-1 INTERCHANGEABLE
Knob
Breeze-Eastern Llc
5340-01-196-6690 INTERCHANGEABLE
Disk,solid,plain
5340-01-205-5711 INTERCHANGEABLE
Plate,mending
5310-01-450-6820220081 INTERCHANGEABLE
Nut,plain,hexagon
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
64049 Titan Intertractor Gmbh (DEU)
804723 Terex American Crane Corp (USA)
REGULARNUT Bethlehem Steel Corp (USA)
1B4331 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
804723 American Hoist and Derrick Co
220081 PRIMARY General Motors Llc Dba General Motors Llc (USA)
B18-2-2 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
220081 General Motors Corp (USA)
P12 PRIMARY Bae Systems Land & Armaments L.p. (USA)
171SA170 Vme Americas Inc Sub of Vme Group N V (USA)
P12 Fmc Corp (USA)
28-2950 Buckeye Machine Co (USA)
Related Parts
5310-00-265-9589INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5360-00-327-0814INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
64049
5950-00-344-8313INTERCHANGEABLE
TRANSFORMER,POWER
6187-15
3110-00-739-5294INTERCHANGEABLE
BEARING
22008-1
6665-00-887-9542INTERCHANGEABLE
EDISON THERMOSTAT
640-49
5310-00-932-1176INTERCHANGEABLE
NUT,SPECIAL
5355-01-122-4764INTERCHANGEABLE
KNOB
22008-1
5340-01-196-6690INTERCHANGEABLE
DISK,SOLID,PLAIN
5340-01-205-5711INTERCHANGEABLE
PLATE,MENDING
5310-01-450-6820INTERCHANGEABLE
NUT,PLAIN,HEXAGON
220081
5331-01-457-9689INTERCHANGEABLE
O-RING
5120-01-581-5833INTERCHANGEABLE
WRENCH,TORQUE

Frequently Asked Questions

What is NSN 5310-00-022-0081?

NSN 5310-00-022-0081 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 5310-00-022-0081?

NSN 5310-00-022-0081 has 12 cross-referenced part numbers: 64049 (Titan Intertractor Gmbh), 804723 (Terex American Crane Corp), REGULARNUT (Bethlehem Steel Corp), 1B4331 (Caterpillar Inc Div Caterpillar Defense), 804723 (American Hoist and Derrick Co) and 7 more.

What NSN replaces 5310-00-022-0081?

There are 12 known substitutes for 5310-00-022-0081: 5310-00-265-9589, 5360-00-327-0814, 5950-00-344-8313 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1B4331?

Key specifications for 1B4331: Nut Height: 0.641 INCHES NOMINAL IN; Thread Quantity Per Inch: 10; Nominal Thread Size: 0.750 INCHES IN; Bearing Surface Type: WASHER FACED. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-022-0081 still in active supply?

NSN 5310-00-022-0081 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.
PartsTable Design LLC · partstable.com