PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W00Washer,key

Whittet-Higgins Company · NSN 5310-00-186-0959 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-0959 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-0959. Primary manufacturer part number: W00.
Features
  • Washer,key — FSC 5310
  • Material Thickness: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
  • Hole Diameter: 0.406 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
  • Style Designator: KEY
  • Departure From Cited Document: AS MODIFIED BY EXTERNALPREBENT KEY WIDTH
  • Outside Diameter: 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
  • Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL COMP 1010 OR STEEL COMP 4320H OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 or Steel Comp 4320h 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 5310-00-186-0959, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Whittet-Higgins Company. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 15 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
NSN5310-00-186-0959
Primary Part NumberW00
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWhittet-Higgins Company
StatusCANCELLED
Material Thickness0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
Hole Diameter0.406 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
Style DesignatorKEY
Departure From Cited DocumentAS MODIFIED BY EXTERNALPREBENT KEY WIDTH
Outside Diameter0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
Material Document and ClassificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1010 OR STEEL COMP 4320H OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OVERALL
Internal Prebent Key Width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
External Key Quantity9
Internal Prebent Key Length0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
External Prebent Key Width0.108 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
Overall Distance Including Keys0.875 INCHES MAXIMUM IN
Hardness Rating50.0 ROCKWELL B MINIMUM AND 81.0 ROCKWELL B MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-080-044556600 INTERCHANGEABLE
Transformer,audio Frequency
Hammond Mfg Co Ltd
5136-00-177-6984 INTERCHANGEABLE
Tap,thread Cutting
5999-00-201-6303 INTERCHANGEABLE
Contact,electrical
5970-00-216-87841-33ALT1PC58 INTERCHANGEABLE
Insulator,plate
The Dewey Electronics Corporation Div Pitometer Log Division
5930-00-438-6771 INTERCHANGEABLE
Switch,rotary
5330-00-503-5950 INTERCHANGEABLE
Seal,plain Encased
5330-00-587-9597 INTERCHANGEABLE
Packing,preformed
5310-00-595-5969 INTERCHANGEABLE
Washer,flat
5950-00-869-4573 INTERCHANGEABLE
Transformer,power
6140-00-963-4979 INTERCHANGEABLE
Battery,storage
Cross-Reference Index
Part NumberManufacturer
W00 PRIMARY Whittet-Higgins Company (USA)
W00 Ilg Industries Inc (USA)
3-1LPC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
106-32ALT1PC61 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
D8465PC33 Ilg Industries Inc (USA)
W00 PRIMARY Fag Bearings Corporation (USA)
D8950PC33 Ilg Industries Inc (USA)
32ALT1PC61 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
3-2BALT2PC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
127680 General Motors Corp (USA)
3-4JPC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
DM6783PC78 Vickers Inc (USA)
2-1NPC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
D7804REVAPC33 Ilg Industries Inc (USA)
3-4PC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
W00 Skf Usa Inc. (USA)
W00 PRIMARY Skf Usa Inc. (USA)
127680 General Motors Llc Dba General Motors Llc (USA)
M4300-10F566PC2 PRIMARY Fairbanks Morse, Llc (USA)
2-1DPC58 PRIMARY The Dewey Electronics Corporation Div Pitometer Log Division (USA)
Related Parts
5950-00-080-0445INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
56600
5136-00-177-6984INTERCHANGEABLE
TAP,THREAD CUTTING
5999-00-201-6303INTERCHANGEABLE
CONTACT,ELECTRICAL
5970-00-216-8784INTERCHANGEABLE
INSULATOR,PLATE
1-33ALT1PC58
5930-00-438-6771INTERCHANGEABLE
SWITCH,ROTARY
5330-00-503-5950INTERCHANGEABLE
SEAL,PLAIN ENCASED
5330-00-587-9597INTERCHANGEABLE
PACKING,PREFORMED
5310-00-595-5969INTERCHANGEABLE
WASHER,FLAT
5950-00-869-4573INTERCHANGEABLE
TRANSFORMER,POWER
6140-00-963-4979INTERCHANGEABLE
BATTERY,STORAGE
5310-01-165-2374INTERCHANGEABLE
WASHER,FLAT
31-P-58
5826-01-183-5499INTERCHANGEABLE
RADIO SET
127680

Frequently Asked Questions

What is NSN 5310-00-186-0959?

NSN 5310-00-186-0959 is a Washer,key, manufactured by Whittet-Higgins Company, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-0959?

NSN 5310-00-186-0959 has 50 cross-referenced part numbers: W00 (Whittet-Higgins Company), W00 (Ilg Industries Inc), 3-1LPC58 (The Dewey Electronics Corporation Div Pitometer Log Division), 106-32ALT1PC61 (The Dewey Electronics Corporation Div Pitometer Log Division), D8465PC33 (Ilg Industries Inc) and 45 more.

What NSN replaces 5310-00-186-0959?

There are 12 known substitutes for 5310-00-186-0959: 5950-00-080-0445, 5136-00-177-6984, 5999-00-201-6303 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W00?

Key specifications for W00: Material Thickness: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Hole Diameter: 0.406 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN; Style Designator: KEY; Departure From Cited Document: AS MODIFIED BY EXTERNALPREBENT KEY WIDTH. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-0959 still in active supply?

NSN 5310-00-186-0959 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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