PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1249SNut,plain,hexagon

Dorsey Trailers Inc · NSN 5310-00-021-8565 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-021-8565 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-021-8565. Primary manufacturer part number: 1249S.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 24
  • Thread Series: UNF
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Nominal Thread Size: 0.375 INCHES IN
  • Material: STEEL OVERALL
  • Nut Height: 0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
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 5310-00-021-8565, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dorsey Trailers Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-021-8565
Primary Part Number1249S
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDorsey Trailers Inc
StatusCANCELLED
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch24
Thread SeriesUNF
Bearing Surface TypeCHAMFERED OR WASHER FACED
Nominal Thread Size0.375 INCHES IN
MaterialSTEEL OVERALL
Nut Height0.320 INCHES MINIMUM AND 0.337 INCHES MAXIMUM IN
Width Across Flats0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
Thread Class2B
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5935-00-080-5568Y116A INTERCHANGEABLE
Socket,plug-in Electronic Compon
Communications & Power Industries Llc Dba Cpi Div Microwave Power Products Division - Eimac Operations
5340-00-534-6962X411 INTERCHANGEABLE
Strap,retaining
Goodrich Corporation
5315-00-696-4057 INTERCHANGEABLE
Pin,idler Gear to S
5305-00-800-7261MS51021-9 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
6520-01-173-2054 INTERCHANGEABLE
Post and Core Kit,dental
5120-01-308-2803Y116 INTERCHANGEABLE
Die,crimping Tool
Daniels Manufacturing Corporation
6230-01-420-5456P60 INTERCHANGEABLE
Reflector,light
Laser Products
6240-01-513-6526P60 INTERCHANGEABLE
Lamp,incandescent
Surefire, Llc Dba Surefire Llc
Cross-Reference Index
Part NumberManufacturer
Y11-6 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
BB4115 Diamond Reo Truck Co (USA)
2006 Empire Electric Brake Co
P60 Amz Alabama Inc. (USA)
X4-11 Cushman Inc a Ransom Co Pobox 7248 Charlotte Nc 28241 7248 (USA)
1249S PRIMARY Dorsey Trailers Inc (USA)
P60 Fmc Corp (USA)
7171A3 Oneida Ltd Silversmiths (USA)
1039 Premier Central Truck Body (USA)
Q1905 International Harvester Co Agricultural Equipment Div (USA)
218565 General Motors Llc Dba General Motors Llc (USA)
218565 General Motors Corp (USA)
Y11-6 Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division (USA)
P60 PRIMARY Bae Systems Land & Armaments L.p. (USA)
56514611 Fruehauf Corp (USA)
FFB571TYPEA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GB26432A2 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
7435-78N PRIMARY Saginaw Products Corporation Dba Cignys (USA)
S2327 Weaver Div of Dura Corp (USA)
7171A3 PRIMARY Saginaw Products Corporation Dba Cignys (USA)
Related Parts
5935-00-080-5568INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
Y116A
5340-00-534-6962INTERCHANGEABLE
STRAP,RETAINING
X411
5315-00-696-4057INTERCHANGEABLE
PIN,IDLER GEAR TO S
5305-00-800-7261INTERCHANGEABLE
SETSCREW
MS51021-9
6520-01-173-2054INTERCHANGEABLE
POST AND CORE KIT,DENTAL
5120-01-308-2803INTERCHANGEABLE
DIE,CRIMPING TOOL
Y116
6230-01-420-5456INTERCHANGEABLE
REFLECTOR,LIGHT
P60
6240-01-513-6526INTERCHANGEABLE
LAMP,INCANDESCENT
P60

Frequently Asked Questions

What is NSN 5310-00-021-8565?

NSN 5310-00-021-8565 is a Nut,plain,hexagon, manufactured by Dorsey Trailers Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-021-8565?

NSN 5310-00-021-8565 has 21 cross-referenced part numbers: Y11-6 (Ingersoll-Rand Company Dba Ingersoll-Rand), BB4115 (Diamond Reo Truck Co), 2006 (Empire Electric Brake Co), P60 (Amz Alabama Inc.), X4-11 (Cushman Inc a Ransom Co Pobox 7248 Charlotte Nc 28241 7248) and 16 more.

What NSN replaces 5310-00-021-8565?

There are 8 known substitutes for 5310-00-021-8565: 5935-00-080-5568, 5340-00-534-6962, 5315-00-696-4057 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1249S?

Key specifications for 1249S: Thread Direction: RIGHT-HAND; Thread Quantity Per Inch: 24; Thread Series: UNF; Bearing Surface Type: CHAMFERED OR WASHER FACED. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-021-8565 still in active supply?

NSN 5310-00-021-8565 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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