PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W09Washer,key

Bae Systems Land & Armaments L.p. · NSN 5310-00-186-0968 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-0968 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-0968. Primary manufacturer part number: W09.
Features
  • Washer,key — FSC 5310
  • Material: STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1025 OR STEEL COMP 1030 OR STEEL COMP 1035 OVERALL
  • Internal Prebent Key Length: 0.125 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
  • Material Document and Classification: FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Internal Prebent Key Width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
  • Hole Diameter: 1.792 INCHES MINIMUM AND 1.817 INCHES MAXIMUM IN
  • Overall Distance Including Keys: 2.734 INCHES MAXIMUM IN
  • Outside Diameter: 2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1005 or Steel Comp 1006 or Steel Comp 1008 or Steel Comp 1010 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1018 or Steel Comp 1025 or Steel Comp 1030 or Steel Comp 1035 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-186-0968, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Land & Armaments L.p.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 24 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
NSN5310-00-186-0968
Primary Part NumberW09
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBae Systems Land & Armaments L.p.
StatusCANCELLED
MaterialSTEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1025 OR STEEL COMP 1030 OR STEEL COMP 1035 OVERALL
Internal Prebent Key Length0.125 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
Material Document and ClassificationFED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
Internal Prebent Key Width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
Hole Diameter1.792 INCHES MINIMUM AND 1.817 INCHES MAXIMUM IN
Overall Distance Including Keys2.734 INCHES MAXIMUM IN
Outside Diameter2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN
External Key Quantity17
Style DesignatorKEY
External Prebent Key Width0.200 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Hardness Rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
Material Thickness0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-006-0617 INTERCHANGEABLE
Washer,key
5305-00-010-0712100712 INTERCHANGEABLE
Screw,machine
Chrysler Realty Company Llc Dba Daimler Chrysler
5930-00-010-1588 INTERCHANGEABLE
Switch,sensitive
1005-00-019-78996182 INTERCHANGEABLE
Depressor,ejector a
Smith & Wesson Sales Company
6110-00-121-05216-18-2 INTERCHANGEABLE
Parts Kit,contact
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
4820-00-146-4111 INTERCHANGEABLE
Body,valve
5330-00-171-78240605263 INTERCHANGEABLE
Seal,plain Encased
New Holland Construction
4030-00-174-624410B INTERCHANGEABLE
Coupling,bead Chain
Bead Industries Inc Div Bead Electronics
2530-00-177-80666182 INTERCHANGEABLE
Boot Assembly,switch
Arco Industries Corp
5310-00-194-0023W09 INTERCHANGEABLE
Washer,lock
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
W09 Bae Systems Land & Armaments L.p. (USA)
E2645PC30 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
35515PC14 Stone Safety Corp (USA)
20555PCM735 Stone Safety Corp (USA)
G10090PC21 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
3090-9PC27 Tuthill Corporation Dba Tuthill Vac & Blower Systems Div Tuthill Vacuum Systems (USA)
G8953PC09 Siemens Energy, Inc. (USA)
CA6494PC47 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
1F212SH2PC3 Singer Co the (USA)
DR2550PC35 Allis-Chalmers Corp (USA)
8910-0009 Itt Goulds Pumps, Inc. (USA)
19755PC9 Stone Safety Corp (USA)
102973 Stone Safety Corp (USA)
MS19070-091 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Y6570 Dresser, Llc (USA)
DG2300ITEM30 Allis-Chalmers Corp (USA)
W6GTM500X9PC241B Ingersoll Rand Co (USA)
BS175-902ITEM14 Peerless Pump a Tbg Inc Co (USA)
G9923PC56 Siemens Energy, Inc. (USA)
51363PC41 Stone Safety Corp (USA)
Related Parts
5310-00-006-0617INTERCHANGEABLE
WASHER,KEY
5305-00-010-0712INTERCHANGEABLE
SCREW,MACHINE
100712
5930-00-010-1588INTERCHANGEABLE
SWITCH,SENSITIVE
1005-00-019-7899INTERCHANGEABLE
DEPRESSOR,EJECTOR A
6182
6110-00-121-0521INTERCHANGEABLE
PARTS KIT,CONTACT
6-18-2
4820-00-146-4111INTERCHANGEABLE
BODY,VALVE
5330-00-171-7824INTERCHANGEABLE
SEAL,PLAIN ENCASED
0605263
4030-00-174-6244INTERCHANGEABLE
COUPLING,BEAD CHAIN
10B
2530-00-177-8066INTERCHANGEABLE
BOOT ASSEMBLY,SWITCH
6182
5310-00-194-0023INTERCHANGEABLE
WASHER,LOCK
W09
5330-00-197-8144INTERCHANGEABLE
GASKET
5310-00-198-2911INTERCHANGEABLE
WASHER,KEY

Frequently Asked Questions

What is NSN 5310-00-186-0968?

NSN 5310-00-186-0968 is a Washer,key, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-0968?

NSN 5310-00-186-0968 has 50 cross-referenced part numbers: W09 (Bae Systems Land & Armaments L.p.), E2645PC30 (Terry Corp of Connecticut Sub of Ingersoll-Rand Co), 35515PC14 (Stone Safety Corp), 20555PCM735 (Stone Safety Corp), G10090PC21 (Air & Liquid Systems Corporation Dba Buffalo Pumps) and 45 more.

What NSN replaces 5310-00-186-0968?

There are 12 known substitutes for 5310-00-186-0968: 5310-00-006-0617, 5305-00-010-0712, 5930-00-010-1588 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W09?

Key specifications for W09: Material: STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1025 OR STEEL COMP 1030 OR STEEL COMP 1035 OVERALL; Internal Prebent Key Length: 0.125 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Material Document and Classification: FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL; Internal Prebent Key Width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-0968 still in active supply?

NSN 5310-00-186-0968 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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