PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3229145Nut,plain,castellated,hexagon

Hatch & Kirk, Inc. · NSN 5310-00-273-7753 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-273-7753 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-273-7753. Primary manufacturer part number: 3229145.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Nut Style: CASTELLATED, HEXAGON
  • Width Across Flats: 1.631 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN
  • Nominal Thread Size: 1.125 INCHES IN
  • Thread Class: 3B
  • Thread Direction: RIGHT-HAND
  • Nondefinitive Spec/std Data: 5 TYPE
  • 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 5310-00-273-7753, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 12 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-273-7753
Primary Part Number3229145
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusACTIVE
Nut StyleCASTELLATED, HEXAGON
Width Across Flats1.631 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN
Nominal Thread Size1.125 INCHES IN
Thread Class3B
Thread DirectionRIGHT-HAND
Nondefinitive Spec/std Data5 TYPE
Bearing Surface TypeCHAMFERED OR WASHER FACED
MaterialSTEEL OVERALL
Thread SeriesUNF
Material Document and ClassificationMIL-S-890,ALLOY NO. 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Nut Height1.500 INCHES NOMINAL IN
Thread Quantity Per Inch12
Lifecycle & Compliance
Acquisition StatusACTIVE
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
5310-00-221-46961B4442 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Caterpillar Inc Div Caterpillar Defense
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
5310-00-274-77053237327 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)
3229145 General Motors Corp Electro-Motive Div (USA)
FFN836GPBTYPE1STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3229145 PRIMARY Hatch & Kirk, Inc. (USA)
Related Parts
5310-00-167-1289INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
AN310-8
5310-00-221-4695INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
5310-00-221-4696INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
1B4442
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
5310-00-274-7705INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
3237327
5310-00-551-7870INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-273-7753?

NSN 5310-00-273-7753 is a Nut,plain,castellated,hexagon, manufactured by Hatch & Kirk, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-273-7753?

NSN 5310-00-273-7753 has 4 cross-referenced part numbers: FFN836TYPE5STYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), 3229145 (General Motors Corp Electro-Motive Div), FFN836GPBTYPE1STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC), 3229145 (Hatch & Kirk, Inc.).

What NSN replaces 5310-00-273-7753?

There are 9 known substitutes for 5310-00-273-7753: 5310-00-167-1289, 5310-00-221-4695, 5310-00-221-4696 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3229145?

Key specifications for 3229145: Nut Style: CASTELLATED, HEXAGON; Width Across Flats: 1.631 INCHES MINIMUM AND 1.687 INCHES MAXIMUM IN; Nominal Thread Size: 1.125 INCHES IN; Thread Class: 3B. 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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