PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37410Nut,self-Locking,extended Washer

Fastenal Company Div Fastenal-Hyma · NSN 5310-01-619-3657 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-619-3657 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-619-3657. Primary manufacturer part number: 37410.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Thread Class: 2B
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Quantity Per Inch: 20
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1050 Washer construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-619-3657, 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 Fastenal-Hyma. Government technical data includes 15 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-619-3657
Primary Part Number37410
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Div Fastenal-Hyma
StatusACTIVE
Thread Class2B
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nominal Thread Size0.250 INCHES IN
Thread Quantity Per Inch20
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Width Across Flats0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Nut StyleHEXAGON
Washer Outside Diameter0.494 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN
MaterialSTEEL COMP 1050 WASHER
Material Document and ClassificationAISI 1050 OR EQUIVALENT MEDIUM CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE WASHER
Surface TreatmentZINC OVERALL
MaterialSTEEL NUT
Surface Treatment Document and ClassificationFE/ZN 3AT PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationLOW CARBON STEEL MFR REF SINGLE MATERIAL RESPONSE NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-383-9803 INTERCHANGEABLE
Gasket
5306-00-469-141537410 INTERCHANGEABLE
Bolt,machine
Eaton Aerospace, Llc Dba Jackson South
6210-00-698-41148515640 INTERCHANGEABLE
Light,indicator
Us Army Aviation and Missile Command
5330-01-234-7532037410 INTERCHANGEABLE
Gasket
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4810-01-280-4414 INTERCHANGEABLE
Disk,valve
6750-01-380-4169 INTERCHANGEABLE
Fixing Bath,photographic
5136-01-672-059037410 INTERCHANGEABLE
Die Head and Die,hand
Ridge Tool Company
Cross-Reference Index
Part NumberManufacturer
37410 PRIMARY Fastenal Company Div Fastenal-Hyma (USA)
Related Parts
5330-00-383-9803INTERCHANGEABLE
GASKET
5306-00-469-1415INTERCHANGEABLE
BOLT,MACHINE
37410
6210-00-698-4114INTERCHANGEABLE
LIGHT,INDICATOR
8515640
5330-01-234-7532INTERCHANGEABLE
GASKET
037410
4810-01-280-4414INTERCHANGEABLE
DISK,VALVE
6750-01-380-4169INTERCHANGEABLE
FIXING BATH,PHOTOGRAPHIC
5136-01-672-0590INTERCHANGEABLE
DIE HEAD AND DIE,HAND
37410

Frequently Asked Questions

What is NSN 5310-01-619-3657?

NSN 5310-01-619-3657 is a Nut,self-Locking,extended Washer, manufactured by Fastenal Company Div Fastenal-Hyma, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-619-3657?

NSN 5310-01-619-3657 has 1 cross-referenced part number: 37410 (Fastenal Company Div Fastenal-Hyma).

What NSN replaces 5310-01-619-3657?

There are 7 known substitutes for 5310-01-619-3657: 5330-00-383-9803, 5306-00-469-1415, 6210-00-698-4114 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37410?

Key specifications for 37410: Thread Class: 2B; Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Nominal Thread Size: 0.250 INCHES IN; End Item Identification: 4120-01-585-1564. 18 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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