PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

523870Washer,flat

Atlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp · NSN 5310-00-900-6456 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-900-6456 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-900-6456. Primary manufacturer part number: 523870.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Material: STEEL COMP 302 OVERALL
  • Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: AMS2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Surface Treatment: SILVER OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-900-6456, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Atlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-900-6456
Primary Part Number523870
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAtlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp
StatusACTIVE
Peripheral Shape StyleROUND
MaterialSTEEL COMP 302 OVERALL
Hole Diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationAMS2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentSILVER OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Material Document and ClassificationAMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6515-01-370-9523 INTERCHANGEABLE
Clip,hemostatic
Cross-Reference Index
Part NumberManufacturer
523870 Alinabal Holdings Corporation Div Engineered Products Group (USA)
523870 PRIMARY Atlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp (USA)
523870 PRIMARY Satellite Aerospace, Incorporated Dba Satellite Aerospace Inc (USA)
523870 PRIMARY Trego Inc (USA)
523870 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
6515-01-370-9523INTERCHANGEABLE
CLIP,HEMOSTATIC

Frequently Asked Questions

What is NSN 5310-00-900-6456?

NSN 5310-00-900-6456 is a Washer,flat, manufactured by Atlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-900-6456?

NSN 5310-00-900-6456 has 5 cross-referenced part numbers: 523870 (Alinabal Holdings Corporation Div Engineered Products Group), 523870 (Atlas Stamping & Manufacturing Corp Dba Atlas Stamping & Manufacturing Corp), 523870 (Satellite Aerospace, Incorporated Dba Satellite Aerospace Inc), 523870 (Trego Inc), 523870 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-900-6456?

There is 1 known substitute for 5310-00-900-6456: 6515-01-370-9523. Verify interchangeability with system specifications before substitution.

What are the specifications of 523870?

Key specifications for 523870: Peripheral Shape Style: ROUND; Material: STEEL COMP 302 OVERALL; Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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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