PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31434Washer,flat

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5310-00-474-3210 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-474-3210 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-474-3210. Primary manufacturer part number: 31434.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.578 INCHES NOMINAL IN
  • Hole Diameter: 0.406 INCHES NOMINAL IN
  • Material Document and Classification: AMS6320 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8735 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-474-3210, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-474-3210
Primary Part Number31434
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusCANCELLED
Center Hole Shape StyleROUND
Overall Diameter0.578 INCHES NOMINAL IN
Hole Diameter0.406 INCHES NOMINAL IN
Material Document and ClassificationAMS6320 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating24.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
Peripheral Shape StyleROUND
MaterialSTEEL COMP 8735 OVERALL
Thickness0.125 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5305-00-485-004431434 INTERCHANGEABLE
Screw
Allianz Sweeper Company
6210-01-094-8766 INTERCHANGEABLE
Light Assembly,indicator
3040-01-466-668531434 INTERCHANGEABLE
Collar,shaft
Leslie Controls, Inc. Dba Leslie Controls Inc
4940-01-530-065231434 INTERCHANGEABLE
Gear,press,spring
Woodward, Inc.
Cross-Reference Index
Part NumberManufacturer
51304743210 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
31434 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
31434 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5305-00-485-0044INTERCHANGEABLE
SCREW
31434
6210-01-094-8766INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
3040-01-466-6685INTERCHANGEABLE
COLLAR,SHAFT
31434
4940-01-530-0652INTERCHANGEABLE
GEAR,PRESS,SPRING
31434

Frequently Asked Questions

What is NSN 5310-00-474-3210?

NSN 5310-00-474-3210 is a Washer,flat, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-474-3210?

NSN 5310-00-474-3210 has 3 cross-referenced part numbers: 51304743210 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 31434 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 31434 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-474-3210?

There are 4 known substitutes for 5310-00-474-3210: 5305-00-485-0044, 6210-01-094-8766, 3040-01-466-6685 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31434?

Key specifications for 31434: Center Hole Shape Style: ROUND; Overall Diameter: 0.578 INCHES NOMINAL IN; Hole Diameter: 0.406 INCHES NOMINAL IN; Material Document and Classification: AMS6320 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-474-3210 still in active supply?

NSN 5310-00-474-3210 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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