PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN121504Nut,plain,hexagon

Sae International Dba Sae International · NSN 5310-00-268-6041 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-268-6041 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-268-6041. Primary manufacturer part number: AN121504.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Nut Height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
  • Thread Series: UNF
  • Hardness Rating: 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
  • Thread Quantity Per Inch: 24
  • Nominal Thread Size: 0.375 INCHES IN
  • Bearing Surface Finish: 63.0 MICROINCHES
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-268-6041, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 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
NSN5310-00-268-6041
Primary Part NumberAN121504
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Nut StyleHEXAGON
Nut Height0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
Thread SeriesUNF
Hardness Rating19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
Thread Quantity Per Inch24
Nominal Thread Size0.375 INCHES IN
Bearing Surface Finish63.0 MICROINCHES
Material Document and ClassificationAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 8740 OVERALL
Thread Class3B
Bearing Surface TypeWASHER FACED
Width Across Flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Countersink Angle85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5980-00-340-3176 INTERCHANGEABLE
Coupler,optoelectronic
5340-00-590-6646 INTERCHANGEABLE
Caster,rigid
4820-00-595-385614358-C INTERCHANGEABLE
Valve,gate
Blue Tee Corp. Dba Gefco
5905-00-926-8740995-3A51 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5340-00-932-5653 INTERCHANGEABLE
Handle,bow
5965-01-052-1875 INTERCHANGEABLE
Loudspeaker,electromagnetic
6625-01-097-22464381 INTERCHANGEABLE
Test Set,radio Frequency Power
Bird Electronic Corporation Div Bird Electronic Corp
4530-01-101-7436 INTERCHANGEABLE
Barrel and Body Assembly,atomize
4530-01-121-6384 INTERCHANGEABLE
Piston,atomizer,burner
4530-01-127-2633 INTERCHANGEABLE
Cartridge Assembly,atomizer
Cross-Reference Index
Part NumberManufacturer
AN121504 Society of Automotive Engineers Inc (USA)
AN121504 Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
879-027C Asrc Federal Facilities Logistics, Llc (USA)
879-027C Harsco Corp Bmy-Combat Systems Div (USA)
2D7 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
2441 Teledyne Industries Inc Teledyne Power Systems Div (USA)
4381 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
AN121504 PRIMARY Sae International Dba Sae International (USA)
AN121504 Aeronautical Standards Group Dept of Navy and Air Force (USA)
8735630 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5980-00-340-3176INTERCHANGEABLE
COUPLER,OPTOELECTRONIC
5340-00-590-6646INTERCHANGEABLE
CASTER,RIGID
4820-00-595-3856INTERCHANGEABLE
VALVE,GATE
14358-C
5905-00-926-8740INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
995-3A51
5340-00-932-5653INTERCHANGEABLE
HANDLE,BOW
5965-01-052-1875INTERCHANGEABLE
LOUDSPEAKER,ELECTROMAGNETIC
6625-01-097-2246INTERCHANGEABLE
TEST SET,RADIO FREQUENCY POWER
4381
4530-01-101-7436INTERCHANGEABLE
BARREL AND BODY ASSEMBLY,ATOMIZE
4530-01-121-6384INTERCHANGEABLE
PISTON,ATOMIZER,BURNER
4530-01-127-2633INTERCHANGEABLE
CARTRIDGE ASSEMBLY,ATOMIZER
4530-01-127-7216INTERCHANGEABLE
CARTRIDGE ASSEMBLY,ATOMIZER
5315-01-136-7505INTERCHANGEABLE
PIN,SHOULDER,HEADLESS

Frequently Asked Questions

What is NSN 5310-00-268-6041?

NSN 5310-00-268-6041 is a Nut,plain,hexagon, manufactured by Sae International Dba Sae International, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-268-6041?

NSN 5310-00-268-6041 has 10 cross-referenced part numbers: AN121504 (Society of Automotive Engineers Inc), AN121504 (Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group), 879-027C (Asrc Federal Facilities Logistics, Llc), 879-027C (Harsco Corp Bmy-Combat Systems Div), 2D7 (Curtiss-Wright Controls, Inc. Div Actuation Division) and 5 more.

What NSN replaces 5310-00-268-6041?

There are 12 known substitutes for 5310-00-268-6041: 5980-00-340-3176, 5340-00-590-6646, 4820-00-595-3856 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN121504?

Key specifications for AN121504: Nut Style: HEXAGON; Nut Height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Thread Series: UNF; Hardness Rating: 19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-268-6041 still in active supply?

NSN 5310-00-268-6041 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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