PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37304Nut,self-Locking,hexagon

Fastenal Company Dba Fastenal Co · NSN 5310-01-564-3531 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-564-3531 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-564-3531. Primary manufacturer part number: 37304.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Quantity Per Inch: 24
  • Thread Series: UNF
  • Nominal Thread Size: 0.375 INCHES IN
  • Surface Treatment Document and Classification: ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Material Document and Classification: IFI-100/107 GRADE C ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-564-3531, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-564-3531
Primary Part Number37304
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Thread Quantity Per Inch24
Thread SeriesUNF
Nominal Thread Size0.375 INCHES IN
Surface Treatment Document and ClassificationASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Material Document and ClassificationIFI-100/107 GRADE C ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Nut Height0.320 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN
Thread Class2B
Width Across Flats0.551 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
LubricationWAX
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5360-00-228-2943 INTERCHANGEABLE
Spring,helical,torsion
5940-00-246-268837304 INTERCHANGEABLE
Terminal Board
Beta Labs Inc a-B and Millen Mfg Div
5961-00-923-9763152-0066-00 INTERCHANGEABLE
Semiconductor Device,diode
Tektronix, Inc.
5961-00-943-408460104-004 INTERCHANGEABLE
Semiconductor Device,diode
Te Connectivity Corporation
3465-01-083-196637304 INTERCHANGEABLE
Washer Assembly
Jergens Inc Div Tooling Components Division
1650-01-115-433237304 INTERCHANGEABLE
Cap,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2540-01-127-694737304 INTERCHANGEABLE
Latch,pintle Hook
Jergens Inc Div Tooling Components Division
5360-01-169-713937304 INTERCHANGEABLE
Spring,spiral,torsion
Ingersoll-Rand Co Material Handling Div
Cross-Reference Index
Part NumberManufacturer
37304 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
5360-00-228-2943INTERCHANGEABLE
SPRING,HELICAL,TORSION
5940-00-246-2688INTERCHANGEABLE
TERMINAL BOARD
37304
5961-00-923-9763INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
152-0066-00
5961-00-943-4084INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
60104-004
3465-01-083-1966INTERCHANGEABLE
WASHER ASSEMBLY
37304
1650-01-115-4332INTERCHANGEABLE
CAP,VALVE
37304
2540-01-127-6947INTERCHANGEABLE
LATCH,PINTLE HOOK
37304
5360-01-169-7139INTERCHANGEABLE
SPRING,SPIRAL,TORSION
37304

Frequently Asked Questions

What is NSN 5310-01-564-3531?

NSN 5310-01-564-3531 is a Nut,self-Locking,hexagon, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-564-3531?

NSN 5310-01-564-3531 has 1 cross-referenced part number: 37304 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-564-3531?

There are 8 known substitutes for 5310-01-564-3531: 5360-00-228-2943, 5940-00-246-2688, 5961-00-923-9763 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37304?

Key specifications for 37304: Thread Quantity Per Inch: 24; Thread Series: UNF; Nominal Thread Size: 0.375 INCHES IN; Surface Treatment Document and Classification: ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 15 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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