PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43443Washer,key

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5310-00-118-9349 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-118-9349 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-118-9349. Primary manufacturer part number: 43443.
Features
  • Washer,key — FSC 5310
  • Outside Diameter: 7.834 INCHES MINIMUM AND 7.854 INCHES MAXIMUM IN
  • Style Designator: KEY
  • Material Document and Classification: AMS 5122 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN
  • Material Thickness: 0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN
  • Material: STEEL COMP 1095 OVERALL
  • External Straight Key Width: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-118-9349, 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 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-118-9349
Primary Part Number43443
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Outside Diameter7.834 INCHES MINIMUM AND 7.854 INCHES MAXIMUM IN
Style DesignatorKEY
Material Document and ClassificationAMS 5122 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN
Material Thickness0.0620 INCHES MINIMUM AND 0.0630 INCHES MAXIMUM IN
MaterialSTEEL COMP 1095 OVERALL
External Straight Key Width0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
External Key Quantity3
Overall Distance Including Keys8.052 INCHES MINIMUM AND 8.072 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-287-481450607DX INTERCHANGEABLE
Elbow,pipe to Tube
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5950-00-691-004743443 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5310-00-831-233243443 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
6240-01-345-2248F90T17/CW/SS INTERCHANGEABLE
Lamp,fluorescent
Gte Products Corp Sylvania Miniature Lighting Div
5136-01-625-499743443 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
Cross-Reference Index
Part NumberManufacturer
43443 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
4730-00-287-4814INTERCHANGEABLE
ELBOW,PIPE TO TUBE
50607DX
5950-00-691-0047INTERCHANGEABLE
TRANSFORMER,POWER
43443
5310-00-831-2332INTERCHANGEABLE
WASHER,FLAT
43443
6240-01-345-2248INTERCHANGEABLE
LAMP,FLUORESCENT
F90T17/CW/SS
5136-01-625-4997INTERCHANGEABLE
TAP,THREAD CUTTING
43443

Frequently Asked Questions

What is NSN 5310-00-118-9349?

NSN 5310-00-118-9349 is a Washer,key, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-118-9349?

NSN 5310-00-118-9349 has 1 cross-referenced part number: 43443 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5310-00-118-9349?

There are 5 known substitutes for 5310-00-118-9349: 4730-00-287-4814, 5950-00-691-0047, 5310-00-831-2332 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43443?

Key specifications for 43443: Outside Diameter: 7.834 INCHES MINIMUM AND 7.854 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: AMS 5122 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN. 9 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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