PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W02Washer,key

Timken Co Div the Timken Company · NSN 5310-00-186-0961 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-0961 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-0961. Primary manufacturer part number: W02.
Features
  • Washer,key — FSC 5310
  • Style Designator: KEY
  • External Key Quantity: 11
  • Overall Distance Including Keys: 1.156 INCHES MAXIMUM IN
  • Departure From Cited Document: AS MODIFIED BY THE OUTSIDE DIAMETER OR AS MODIFIED BY THE INTERNAL PREBENT KEY LENGTH OR AS MODIFIED BY THE EXTERNAL PREBENT KEY WIDTH
  • Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Hole Diameter: 0.601 INCHES MINIMUM AND 0.616 INCHES MAXIMUM IN
  • External Prebent Key Width: 0.108 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 or Steel Comp 1012 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-186-0961, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 40 commercial cross-references from 26 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-186-0961
Primary Part NumberW02
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Style DesignatorKEY
External Key Quantity11
Overall Distance Including Keys1.156 INCHES MAXIMUM IN
Departure From Cited DocumentAS MODIFIED BY THE OUTSIDE DIAMETER OR AS MODIFIED BY THE INTERNAL PREBENT KEY LENGTH OR AS MODIFIED BY THE EXTERNAL PREBENT KEY WIDTH
Material Document and ClassificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
Hole Diameter0.601 INCHES MINIMUM AND 0.616 INCHES MAXIMUM IN
External Prebent Key Width0.108 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
Outside Diameter0.813 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
Material Thickness0.042 INCHES NOMINAL IN
MaterialSTEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OVERALL
Internal Prebent Key Length0.063 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
Hardness Rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
Internal Prebent Key Width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-045-3810 INTERCHANGEABLE
Washer,key
6220-00-122-667530-0087 INTERCHANGEABLE
Spotlight
Grimes Aerospace Company
5133-00-187-2824100-0025 INTERCHANGEABLE
Cutter,counterbore
Metal Cutting Tools Inc
5310-00-190-2907PB19091 INTERCHANGEABLE
Washer,flat
Mission Systems Davenport Inc.
5940-00-204-7844 INTERCHANGEABLE
Terminal,lug
5910-00-237-273910-00025-00 INTERCHANGEABLE
Capacitor,electrica
Compaq Federal Llc
2590-00-253-7421292481 INTERCHANGEABLE
Cap,filler Opening
Briggs and Stratton Corp
4920-00-337-98361000025 INTERCHANGEABLE
Mock Up Zero
Lockheed Martin Corporation Div Rms - Mitchel Field
5961-00-536-1559 INTERCHANGEABLE
Semiconductor Device,diode
4820-00-606-93686636 INTERCHANGEABLE
Locknut
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
W02 Timken Co Div the Timken Company (USA)
N9087PC26 Ecolaire Inc Baldwin-Hamilton Co Div (USA)
HN39PC114 Hale Products, Inc. (USA)
W02 Standard Locknut, L.l.c. (USA)
BM390 Cooper Cameron Corp Ajax-Superior Div (USA)
MADG1084APC34 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
101085 Cooper Cameron Corp Ajax-Superior Div (USA)
W02 Applied Industrial Technologies Inc (USA)
N8039PC208 Ecolaire Inc Baldwin-Hamilton Co Div (USA)
A2025R2-15 Ametek Inc Schutte and Koerting Div (USA)
E365PC25 Circor Naval Solutions Llc Dba Warren Pumps (USA)
127682 General Motors Corp (USA)
E297-2PC32 Circor Naval Solutions Llc Dba Warren Pumps (USA)
MADG1084CPC34 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
X20083 Ge Aviation Systems Llc Dba Ge Aviation (USA)
SKFW02 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
2CM42B3PT39 General Electric Company (USA)
W02 Fag Bearings Corporation (USA)
W300087 Northrop Grumman Systems Corporation (USA)
300087 Crofton Co (USA)
Related Parts
5310-00-045-3810INTERCHANGEABLE
WASHER,KEY
6220-00-122-6675INTERCHANGEABLE
SPOTLIGHT
30-0087
5133-00-187-2824INTERCHANGEABLE
CUTTER,COUNTERBORE
100-0025
5310-00-190-2907INTERCHANGEABLE
WASHER,FLAT
PB19091
5940-00-204-7844INTERCHANGEABLE
TERMINAL,LUG
5910-00-237-2739INTERCHANGEABLE
CAPACITOR,ELECTRICA
10-00025-00
2590-00-253-7421INTERCHANGEABLE
CAP,FILLER OPENING
292481
4920-00-337-9836INTERCHANGEABLE
MOCK UP ZERO
1000025
5961-00-536-1559INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4820-00-606-9368INTERCHANGEABLE
LOCKNUT
6636
4920-00-714-5632INTERCHANGEABLE
AIR PUMP,VACUUM AND
101-085
5961-00-909-7383INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
W02

Frequently Asked Questions

What is NSN 5310-00-186-0961?

NSN 5310-00-186-0961 is a Washer,key, manufactured by Timken Co Div the Timken Company, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-0961?

NSN 5310-00-186-0961 has 40 cross-referenced part numbers: W02 (Timken Co Div the Timken Company), N9087PC26 (Ecolaire Inc Baldwin-Hamilton Co Div), HN39PC114 (Hale Products, Inc.), W02 (Standard Locknut, L.l.c.), BM390 (Cooper Cameron Corp Ajax-Superior Div) and 35 more.

What NSN replaces 5310-00-186-0961?

There are 12 known substitutes for 5310-00-186-0961: 5310-00-045-3810, 6220-00-122-6675, 5133-00-187-2824 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W02?

Key specifications for W02: Style Designator: KEY; External Key Quantity: 11; Overall Distance Including Keys: 1.156 INCHES MAXIMUM IN; Departure From Cited Document: AS MODIFIED BY THE OUTSIDE DIAMETER OR AS MODIFIED BY THE INTERNAL PREBENT KEY LENGTH OR AS MODIFIED BY THE EXTERNAL PREBENT KEY WIDTH. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-0961 still in active supply?

NSN 5310-00-186-0961 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.
PartsTable Design LLC · partstable.com