PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37346Nut,self-Locking,extended Washer

Fastenal Company Div Mqmi · NSN 5310-01-683-2960 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-683-2960 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-683-2960. Primary manufacturer part number: 37346.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Nut Style: HEXAGON
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Quantity Per Inch: 13
  • Nominal Thread Size: 0.500 INCHES IN
  • Material: STEEL OVERALL
  • Surface Treatment: PHOSPHATE OVERALL
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-683-2960, 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 Div Mqmi. Government technical data includes 6 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
NSN5310-01-683-2960
Primary Part Number37346
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Div Mqmi
StatusACTIVE
Nut StyleHEXAGON
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch13
Nominal Thread Size0.500 INCHES IN
MaterialSTEEL OVERALL
Surface TreatmentPHOSPHATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5930-00-135-504037346 INTERCHANGEABLE
Switch,thermostatic
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
9540-00-242-5436 INTERCHANGEABLE
Beam,structural
4810-00-336-950937346 INTERCHANGEABLE
Seat,valve
Eaton Aerospace, Llc Dba Jackson South
9540-00-528-8819 INTERCHANGEABLE
Beam,structural
5950-00-945-377037346 INTERCHANGEABLE
Transformer,audio Frequency
Freed Transformer Co
5365-01-090-6579R-8-9-20 INTERCHANGEABLE
Ring,operating
Todd Combustion Inc
6210-01-158-0393 INTERCHANGEABLE
Light Assembly,indicator
5365-01-418-5879CB27986-001 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
37346 PRIMARY Fastenal Company Div Mqmi (USA)
Related Parts
5930-00-135-5040INTERCHANGEABLE
SWITCH,THERMOSTATIC
37346
9540-00-242-5436INTERCHANGEABLE
BEAM,STRUCTURAL
4810-00-336-9509INTERCHANGEABLE
SEAT,VALVE
37346
9540-00-528-8819INTERCHANGEABLE
BEAM,STRUCTURAL
5950-00-945-3770INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
37346
5365-01-090-6579INTERCHANGEABLE
RING,OPERATING
R-8-9-20
6210-01-158-0393INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
5365-01-418-5879INTERCHANGEABLE
SHIM
CB27986-001

Frequently Asked Questions

What is NSN 5310-01-683-2960?

NSN 5310-01-683-2960 is a Nut,self-Locking,extended Washer, manufactured by Fastenal Company Div Mqmi, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-683-2960?

NSN 5310-01-683-2960 has 1 cross-referenced part number: 37346 (Fastenal Company Div Mqmi).

What NSN replaces 5310-01-683-2960?

There are 8 known substitutes for 5310-01-683-2960: 5930-00-135-5040, 9540-00-242-5436, 4810-00-336-9509 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37346?

Key specifications for 37346: Nut Style: HEXAGON; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Quantity Per Inch: 13; Part Name Assigned by Controlling Agency: LOCK NUT. 8 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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