PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40945Washer,flat

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-474-3299 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-474-3299 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-474-3299. Primary manufacturer part number: 40945.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
  • Material: STEEL COMP 416F OVERALL
  • Thickness: 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
  • Material Document and Classification: AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416f Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-474-3299, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-474-3299
Primary Part Number40945
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Hole Diameter0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN
MaterialSTEEL COMP 416F OVERALL
Thickness0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
Material Document and ClassificationAMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Overall Diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5306-00-156-2700 INTERCHANGEABLE
Bolt,clevis
5950-00-824-019911080 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
3020-01-306-6119 INTERCHANGEABLE
Gear,worm
8040-01-321-125440945 INTERCHANGEABLE
Adhesive
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
40945 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5306-00-156-2700INTERCHANGEABLE
BOLT,CLEVIS
5950-00-824-0199INTERCHANGEABLE
TRANSFORMER,POWER
11080
3020-01-306-6119INTERCHANGEABLE
GEAR,WORM
8040-01-321-1254INTERCHANGEABLE
ADHESIVE
40945

Frequently Asked Questions

What is NSN 5310-00-474-3299?

NSN 5310-00-474-3299 is a Washer,flat, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-474-3299?

NSN 5310-00-474-3299 has 1 cross-referenced part number: 40945 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-474-3299?

There are 4 known substitutes for 5310-00-474-3299: 5306-00-156-2700, 5950-00-824-0199, 3020-01-306-6119 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40945?

Key specifications for 40945: Hole Diameter: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Material: STEEL COMP 416F OVERALL; Thickness: 0.083 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN; Material Document and Classification: AMS5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 8 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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