PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2550W23608Washer,flat

Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp · NSN 5310-01-621-5154 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-621-5154 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-621-5154. Primary manufacturer part number: 2550W23608.
Features
  • Washer,flat — FSC 5310
  • 4 verified cross-references
  • Primary manufacturer: Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-621-5154, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp. This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersSuperior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp (CAGE 1L160); Superior Washer & Gasket Corp (CAGE 4WUG7); Mcmaster-Carr Supply Co (CAGE 39428); Alloy Fastener Co (CAGE 1U794)
Technical Specifications
ParameterValue
NSN5310-01-621-5154
Primary Part Number2550W23608
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSuperior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-01-579-6956AEW23X04R000GA2AC1 INTERCHANGEABLE
Washer,flat
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
2550W23608 PRIMARY Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp (USA)
2550W23608 PRIMARY Superior Washer & Gasket Corp (USA)
91100A130 Mcmaster-Carr Supply Co (USA)
89743 Alloy Fastener Co (USA)
Related Parts
5310-01-579-6956INTERCHANGEABLE
WASHER,FLAT
AEW23X04R000GA2AC1

Frequently Asked Questions

What is NSN 5310-01-621-5154?

NSN 5310-01-621-5154 is a Washer,flat, manufactured by Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-621-5154?

NSN 5310-01-621-5154 has 4 cross-referenced part numbers: 2550W23608 (Superior Washer & Gasket Corp. Dba Superior Washer & Gasket Corp), 2550W23608 (Superior Washer & Gasket Corp), 91100A130 (Mcmaster-Carr Supply Co), 89743 (Alloy Fastener Co).

What NSN replaces 5310-01-621-5154?

There is 1 known substitute for 5310-01-621-5154: 5310-01-579-6956. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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