PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

613949Washer,key

Rtx Corporation Div Pratt & Whitney · NSN 5310-00-369-5810 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-369-5810 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-369-5810. Primary manufacturer part number: 613949.
Features
  • Washer,key — FSC 5310
  • Material: STEEL COMP 321 OVERALL
  • Hole Diameter: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
  • External Key Quantity: 4
  • Material Thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
  • Outside Diameter: 0.560 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
  • Material Document and Classification: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • 3 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 321 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-369-5810, 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 Div Pratt & Whitney. Government technical data includes 6 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-369-5810
Primary Part Number613949
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Div Pratt & Whitney
StatusACTIVE
MaterialSTEEL COMP 321 OVERALL
Hole Diameter0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
External Key Quantity4
Material Thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
Outside Diameter0.560 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
Material Document and ClassificationAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5985-00-669-72156588 INTERCHANGEABLE
Shutter,waveguide
Cpi Electron Device Business, Inc.
5310-01-669-4734 INTERCHANGEABLE
Washer,key
Cross-Reference Index
Part NumberManufacturer
613949 Turbo Power & Marine System Inc Sub of United Technologies Corp (USA)
613949 PRIMARY Rtx Corporation Div Pratt & Whitney (USA)
613949 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5985-00-669-7215INTERCHANGEABLE
SHUTTER,WAVEGUIDE
6588
5310-01-669-4734INTERCHANGEABLE
WASHER,KEY

Frequently Asked Questions

What is NSN 5310-00-369-5810?

NSN 5310-00-369-5810 is a Washer,key, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-369-5810?

NSN 5310-00-369-5810 has 3 cross-referenced part numbers: 613949 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 613949 (Rtx Corporation Div Pratt & Whitney), 613949 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-369-5810?

There are 2 known substitutes for 5310-00-369-5810: 5985-00-669-7215, 5310-01-669-4734. Verify interchangeability with system specifications before substitution.

What are the specifications of 613949?

Key specifications for 613949: Material: STEEL COMP 321 OVERALL; Hole Diameter: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN; External Key Quantity: 4; Material Thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. 6 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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