PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C21-5002-001Washer,flat

Andrea Systems Llc · NSN 5310-01-144-9402 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-144-9402 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-144-9402. Primary manufacturer part number: C21-5002-001.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Surface Treatment Document and Classification: MIL-A-8625 TY II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: ANODIZE OVERALL
  • Peripheral Shape Style: ROUND
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Material Document and Classification: QQ-A-325 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thickness: 0.090 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-144-9402, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Andrea Systems Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-144-9402
Primary Part NumberC21-5002-001
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAndrea Systems Llc
StatusACTIVE
Overall Diameter0.625 INCHES NOMINAL IN
Surface Treatment Document and ClassificationMIL-A-8625 TY II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentANODIZE OVERALL
Peripheral Shape StyleROUND
MaterialALUMINUM ALLOY 6061 OVERALL
Material Document and ClassificationQQ-A-325 T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thickness0.090 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Hole Diameter0.500 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-01-477-611482418-1-1-1-.459 INTERCHANGEABLE
Standoff,threaded,spacing
Hamilton Sundstrand Corporation Dba Collins Aerospace
8145-01-627-887882418 INTERCHANGEABLE
Shipping and Storage Container,a
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
824-18 Andrea Electronics Corporation (USA)
C21-5002-001 Andrea Electronics Corporation (USA)
C21-5002-001 PRIMARY Andrea Systems Llc (USA)
Related Parts
5340-01-477-6114INTERCHANGEABLE
STANDOFF,THREADED,SPACING
82418-1-1-1-.459
8145-01-627-8878INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,A
82418

Frequently Asked Questions

What is NSN 5310-01-144-9402?

NSN 5310-01-144-9402 is a Washer,flat, manufactured by Andrea Systems Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-144-9402?

NSN 5310-01-144-9402 has 3 cross-referenced part numbers: 824-18 (Andrea Electronics Corporation), C21-5002-001 (Andrea Electronics Corporation), C21-5002-001 (Andrea Systems Llc).

What NSN replaces 5310-01-144-9402?

There are 2 known substitutes for 5310-01-144-9402: 5340-01-477-6114, 8145-01-627-8878. Verify interchangeability with system specifications before substitution.

What are the specifications of C21-5002-001?

Key specifications for C21-5002-001: Overall Diameter: 0.625 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 TY II MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Surface Treatment: ANODIZE OVERALL; Peripheral Shape Style: ROUND. 10 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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