PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4254Washer,flat

Wrought Washer Mfg., Inc. · NSN 5310-00-603-0621 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-603-0621 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-603-0621. Primary manufacturer part number: 4254.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
  • Thickness: 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • 2 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-603-0621, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Wrought Washer Mfg., Inc.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5310-00-603-0621
Primary Part Number4254
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWrought Washer Mfg., Inc.
StatusACTIVE
Hole Diameter0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
Thickness0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Overall Diameter1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-012-5629 INTERCHANGEABLE
Nut,plain,hexagon
5905-00-123-526625953-2-12 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ward Leonard Ct Llc
5999-00-649-9022102036 INTERCHANGEABLE
Clip,electrical
Littelfuse, Inc.
5975-00-825-69224254 INTERCHANGEABLE
Elbow,electrical Conduit
Abb Installation Products Inc
6130-01-247-4702J22HP INTERCHANGEABLE
Power Supply
Federal Signal Corporation
5340-01-273-0144 INTERCHANGEABLE
Bolt,barrel
5977-01-287-989642-54 INTERCHANGEABLE
Brush,electrical Contact
Prestolite Electric Inc
6220-01-651-9787425-4-1 INTERCHANGEABLE
Panel,indicating,light Transmitt
Dutch Valley Supply Co.
Cross-Reference Index
Part NumberManufacturer
4254 Wrought Washer Mfg., Inc. (USA)
310-0027-000 Wrought Washer Mfg., Inc. (USA)
Related Parts
5310-00-012-5629INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5905-00-123-5266INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
25953-2-12
5999-00-649-9022INTERCHANGEABLE
CLIP,ELECTRICAL
102036
5975-00-825-6922INTERCHANGEABLE
ELBOW,ELECTRICAL CONDUIT
4254
6130-01-247-4702INTERCHANGEABLE
POWER SUPPLY
J22HP
5340-01-273-0144INTERCHANGEABLE
BOLT,BARREL
5977-01-287-9896INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
42-54
6220-01-651-9787INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
425-4-1

Frequently Asked Questions

What is NSN 5310-00-603-0621?

NSN 5310-00-603-0621 is a Washer,flat, manufactured by Wrought Washer Mfg., Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-603-0621?

NSN 5310-00-603-0621 has 2 cross-referenced part numbers: 4254 (Wrought Washer Mfg., Inc.), 310-0027-000 (Wrought Washer Mfg., Inc.).

What NSN replaces 5310-00-603-0621?

There are 8 known substitutes for 5310-00-603-0621: 5310-00-012-5629, 5905-00-123-5266, 5999-00-649-9022 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4254?

Key specifications for 4254: Hole Diameter: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN; Thickness: 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN; Peripheral Shape Style: ROUND; Center Hole Shape Style: ROUND. 7 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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