PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFN836TYPE5STYLE1Nut,plain,castellated,hexagon

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-262-5959 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-5959 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-5959. Primary manufacturer part number: FFN836TYPE5STYLE1.
Features
  • Nut,plain,castellated,hexagon — FSC 5310
  • Nut Style: CASTELLATED, HEXAGON
  • Departure From Cited Designator: AS MODIFIED BY THD TYPE RQMT
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 5 TYPE AND 1 STYLE
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Width Across Flats: 0.562 INCHES NOMINAL IN
  • Nominal Thread Size: 0.375 INCHES IN
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 5310-00-262-5959, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5310-00-262-5959
Primary Part NumberFFN836TYPE5STYLE1
Item NameNut,plain,castellated,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Nut StyleCASTELLATED, HEXAGON
Departure From Cited DesignatorAS MODIFIED BY THD TYPE RQMT
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data5 TYPE AND 1 STYLE
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Width Across Flats0.562 INCHES NOMINAL IN
Nominal Thread Size0.375 INCHES IN
Nut Height0.406 INCHES NOMINAL IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch16
Thread Class2B
Bearing Surface TypeCHAMFERED OR WASHER FACED
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
5310-00-221-46961B4442 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
5310-00-273-7740 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)
FFN836GPBTYPE1STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
297175PC9 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (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
5310-00-273-7740INTERCHANGEABLE
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 5310-00-262-5959?

NSN 5310-00-262-5959 is a Nut,plain,castellated,hexagon, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-5959?

NSN 5310-00-262-5959 has 3 cross-referenced part numbers: FFN836TYPE5STYLE1 (Federal Specifications Promulgated by General Services Administration Washington DC), FFN836GPBTYPE1STYLE4 (Federal Specifications Promulgated by General Services Administration Washington DC), 297175PC9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5310-00-262-5959?

There are 9 known substitutes for 5310-00-262-5959: 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 FFN836TYPE5STYLE1?

Key specifications for FFN836TYPE5STYLE1: Nut Style: CASTELLATED, HEXAGON; Departure From Cited Designator: AS MODIFIED BY THD TYPE RQMT; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 5 TYPE AND 1 STYLE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-5959 still in active supply?

NSN 5310-00-262-5959 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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