PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B4442Nut,plain,castellated,hexagon

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-221-4696 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-221-4696 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-221-4696. Primary manufacturer part number: 1B4442.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Class: 2B
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 5 TYPE AND 1 STYLE
  • Width Across Flats: 0.5625 INCHES NOMINAL IN
  • Nut Height: 0.406 INCHES NOMINAL IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-221-4696, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-221-4696
Primary Part Number1B4442
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Nominal Thread Size0.375 INCHES IN
Thread Class2B
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data5 TYPE AND 1 STYLE
Width Across Flats0.5625 INCHES NOMINAL IN
Nut Height0.406 INCHES NOMINAL IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Thread DirectionRIGHT-HAND
Thread SeriesUNF
Thread Quantity Per Inch24
Nut StyleCASTELLATED, HEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5310-00-167-1289AN310-8 INTERCHANGEABLE
Nut,plain,castellated,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-221-4695 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5310-00-221-4705 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5310-00-221-4708 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5310-00-262-5959 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5310-00-273-7740 INTERCHANGEABLE
Nut,plain,castellated,hexagon
5310-00-273-77533229145 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Hatch & Kirk, Inc.
5310-00-274-77053237327 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Hatch & Kirk, Inc.
5310-00-551-7870 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Cross-Reference Index
Part NumberManufacturer
FFN836TYPE5STYLE1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-N-836 TYPE V Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FFN836GPBTYPE1STYLE4GRADEA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1B4442 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5310-00-167-1289INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
AN310-8
5310-00-221-4695INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-221-4705INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-221-4708INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-262-5959INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-273-7740INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-273-7753INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
3229145
5310-00-274-7705INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
3237327
5310-00-551-7870INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-221-4696?

NSN 5310-00-221-4696 is a Nut,plain,castellated,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 5310-00-221-4696?

NSN 5310-00-221-4696 has 4 cross-referenced part numbers: FFN836TYPE5STYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), FF-N-836 TYPE V (Federal Specifications Promulgated by General Services Administration Washington DC), FFN836GPBTYPE1STYLE4GRADEA (Federal Specifications Promulgated by General Services Administration Washington DC), 1B4442 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-00-221-4696?

There are 9 known substitutes for 5310-00-221-4696: 5310-00-167-1289, 5310-00-221-4695, 5310-00-221-4705 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1B4442?

Key specifications for 1B4442: Nominal Thread Size: 0.375 INCHES IN; Thread Class: 2B; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 5 TYPE AND 1 STYLE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-221-4696 still in active supply?

NSN 5310-00-221-4696 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