PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W8GTM500X2PC241AWasher,key

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 5310-00-186-0970 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-0970 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-0970. Primary manufacturer part number: W8GTM500X2PC241A.
Features
  • Washer,key — FSC 5310
  • External Key Quantity: 17
  • External Prebent Key Width: 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
  • Style Designator: KEY
  • Internal Prebent Key Width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
  • Overall Distance Including Keys: 3.109 INCHES MAXIMUM IN
  • Hole Diameter: 2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
  • Outside Diameter: 2.656 INCHES MINIMUM AND 2.686 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 5310-00-186-0970, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 23 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
NSN5310-00-186-0970
Primary Part NumberW8GTM500X2PC241A
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusCANCELLED
External Key Quantity17
External Prebent Key Width0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Style DesignatorKEY
Internal Prebent Key Width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
Overall Distance Including Keys3.109 INCHES MAXIMUM IN
Hole Diameter2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
Outside Diameter2.656 INCHES MINIMUM AND 2.686 INCHES MAXIMUM 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
Material Thickness0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
Internal Prebent Key Length0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Hardness Rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
8415-00-009-1900 INTERCHANGEABLE
Gloves,chemical and Oil Protecti
5310-00-012-5016187190 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Lockheed Martin Corporation Div Rms - Mitchel Field
5305-00-151-573456611 INTERCHANGEABLE
Screw,cap,socket Head
Parker Hannifin Corporation Div Hydraulic Systems Division
5310-00-177-1258N35P INTERCHANGEABLE
Nut,plain,hexagon
Meritor Industrial Products, Llc
5310-00-185-9744125016 INTERCHANGEABLE
Washer,flat
Cummins Inc.
5310-00-209-0965MS35338-47 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-209-2573 INTERCHANGEABLE
Washer,key
3020-00-274-6605 INTERCHANGEABLE
Gear,helical
5310-00-291-9908514828 INTERCHANGEABLE
Washer,flat
Atwood Fence Co Inc
3120-00-293-582033656 INTERCHANGEABLE
Bearing,sleeve
Prestolite Electric Inc
Cross-Reference Index
Part NumberManufacturer
W8GTM500X2PC241A Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Z10ALV241X1-351 Ingersoll Rand Co (USA)
SG2293PC30 Siemens Energy, Inc. (USA)
W11 Allis-Chalmers Corp (USA)
G378821PC39 Elliott Company Div Jeannette (USA)
C3593-7PC130 Ex-Cell-O Corp Machine Tool Products Div (USA)
187942PC60 Siemens Energy, Inc. Dba Dresser-Rand (USA)
SG2302PC30 Circor Pumps North America Llc (USA)
186566PC60 Ingersoll Rand Co (USA)
185727PC60 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
W11 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
189020APC625 Siemens Energy, Inc. Dba Dresser-Rand (USA)
W11 Singer Co the (USA)
W6GTM500X2PC241A Ingersoll Rand Co (USA)
189020APC625 Ingersoll Rand Co (USA)
G9677PC100 Westinghouse Electric Corp (USA)
M2013J Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
SG2843PC27 Siemens Energy, Inc. (USA)
K17625APC56 Stone Safety Corp (USA)
NP71921ESPC67 Capitol Gears Inc
Related Parts
8415-00-009-1900INTERCHANGEABLE
GLOVES,CHEMICAL AND OIL PROTECTI
5310-00-012-5016INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
187190
5305-00-151-5734INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
56611
5310-00-177-1258INTERCHANGEABLE
NUT,PLAIN,HEXAGON
N35P
5310-00-185-9744INTERCHANGEABLE
WASHER,FLAT
125016
5310-00-209-0965INTERCHANGEABLE
WASHER,LOCK
MS35338-47
5310-00-209-2573INTERCHANGEABLE
WASHER,KEY
3020-00-274-6605INTERCHANGEABLE
GEAR,HELICAL
5310-00-291-9908INTERCHANGEABLE
WASHER,FLAT
514828
3120-00-293-5820INTERCHANGEABLE
BEARING,SLEEVE
33656
5110-00-440-7996INTERCHANGEABLE
BLADE,REAMER
5110-00-440-7996
5950-00-471-8419INTERCHANGEABLE
COIL,RADIO FREQUENCY
335-845-5

Frequently Asked Questions

What is NSN 5310-00-186-0970?

NSN 5310-00-186-0970 is a Washer,key, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-0970?

NSN 5310-00-186-0970 has 50 cross-referenced part numbers: W8GTM500X2PC241A (Curtiss-Wright Electro-Mechanical Corporation Div Epd), Z10ALV241X1-351 (Ingersoll Rand Co), SG2293PC30 (Siemens Energy, Inc.), W11 (Allis-Chalmers Corp), G378821PC39 (Elliott Company Div Jeannette) and 45 more.

What NSN replaces 5310-00-186-0970?

There are 12 known substitutes for 5310-00-186-0970: 8415-00-009-1900, 5310-00-012-5016, 5305-00-151-5734 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W8GTM500X2PC241A?

Key specifications for W8GTM500X2PC241A: External Key Quantity: 17; External Prebent Key Width: 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN; Style Designator: KEY; Internal Prebent Key Width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-0970 still in active supply?

NSN 5310-00-186-0970 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