PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525341Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-922-6416 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-922-6416 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-922-6416. Primary manufacturer part number: 525341.
Features
  • Washer,flat — FSC 5310
  • Thickness: 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
  • Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
  • Material: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
  • Heat Treatment: AS FABRICATED
  • Surface Finish: 63.0 MICROINCHES BOTTOM
  • Surface Finish: 63.0 MICROINCHES TOP
  • Material Document and Classification: AMS 6350 ASSN STD 1ST MATERIAL RESPONSE OR 66 FED STD 1ST MATERIAL RESPONSE AND 66 FED STD 2ND MATERIAL RESPONSE OR AMS 6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4130 or Steel Comp 8630 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-922-6416, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-922-6416
Primary Part Number525341
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Thickness0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Hole Diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
MaterialSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
Heat TreatmentAS FABRICATED
Surface Finish63.0 MICROINCHES BOTTOM
Surface Finish63.0 MICROINCHES TOP
Material Document and ClassificationAMS 6350 ASSN STD 1ST MATERIAL RESPONSE OR 66 FED STD 1ST MATERIAL RESPONSE AND 66 FED STD 2ND MATERIAL RESPONSE OR AMS 6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Overall Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4310-00-294-2749P52534-1 INTERCHANGEABLE
Ring,piston
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
4220-01-458-5826525-341 INTERCHANGEABLE
Parts Kit,diving Helmet
Kirby Morgan Dive Systems Inc
Cross-Reference Index
Part NumberManufacturer
525341 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
525341 Atomic Energy Commission Oak Ridge Opns Office (USA)
525341 Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA)
525341 Nielsen Hardware Corporation (USA)
525341 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
525341 Enjet Aero Manchester Llc (USA)
525341 Rogerson Kratos (USA)
525341 Nielsen Hardware Corp (USA)
Related Parts
4310-00-294-2749INTERCHANGEABLE
RING,PISTON
P52534-1
4220-01-458-5826INTERCHANGEABLE
PARTS KIT,DIVING HELMET
525-341

Frequently Asked Questions

What is NSN 5310-00-922-6416?

NSN 5310-00-922-6416 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-922-6416?

NSN 5310-00-922-6416 has 8 cross-referenced part numbers: 525341 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 525341 (Atomic Energy Commission Oak Ridge Opns Office), 525341 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring), 525341 (Nielsen Hardware Corporation), 525341 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 3 more.

What NSN replaces 5310-00-922-6416?

There are 2 known substitutes for 5310-00-922-6416: 4310-00-294-2749, 4220-01-458-5826. Verify interchangeability with system specifications before substitution.

What are the specifications of 525341?

Key specifications for 525341: Thickness: 0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; Material: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL; Heat Treatment: AS FABRICATED. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-922-6416 still in active supply?

NSN 5310-00-922-6416 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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