PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W-10Washer,key

Anti-Friction Bearing Mfg Assn Inc the · NSN 5310-01-132-8555 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-132-8555 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-132-8555. Primary manufacturer part number: W-10.
Features
  • Washer,key — FSC 5310
  • Internal Prebent Key Length: 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
  • Hole Diameter: 1.992 INCHES MINIMUM AND 2.017 INCHES MAXIMUM IN
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 304H OVERALL
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
  • External Key Quantity: 17
  • Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Style Designator: KEY
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 302b or Steel Comp 303 or Steel Comp 303 Plus X or Steel Comp 303SE or Steel Comp 303CU or Steel Comp 303MA or Steel Comp 303PB or Steel Comp 304 or Steel Comp 304l or Steel Comp 304h Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-01-132-8555, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Anti-Friction Bearing Mfg Assn Inc the. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-132-8555
Primary Part NumberW-10
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAnti-Friction Bearing Mfg Assn Inc the
StatusACTIVE
Internal Prebent Key Length0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Hole Diameter1.992 INCHES MINIMUM AND 2.017 INCHES MAXIMUM IN
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 304H OVERALL
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
External Key Quantity17
Test Data Document81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Style DesignatorKEY
External Prebent Key Width0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Special Test FeaturesSPECIAL QUALITY CONTROL TESTING
Criticality Code JustificationZZZY
Material Thickness0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
Material Document and ClassificationA2SI,COND A ASSN STD ALL MATERIAL RESPONSES OVERALL
Overall Distance Including Keys2.8595 INCHES MINIMUM AND 2.9220 INCHES MAXIMUM IN
Outside Diameter2.438 INCHES MINIMUM AND 2.468 INCHES MAXIMUM IN
Internal Prebent Key Width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-186-0969 INTERCHANGEABLE
Washer,key
5955-00-264-5310531574-001 INTERCHANGEABLE
Crystal Unit,quartz
Raytheon Company Div Corp
5920-00-280-3145 INTERCHANGEABLE
Fuse,plug
5905-00-284-342358-25KOHMPORM10PCTSTAPER INTERCHANGEABLE
Resistor,variable,wire Wound,non
Clarostat Sensors and Controls
2920-00-540-8354354799R91 INTERCHANGEABLE
Spark Plug
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5310-00-637-9541019-00004-42 INTERCHANGEABLE
Washer,lock
Kovatch Corp.
5330-00-678-710649336 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5950-00-849-2588W10 INTERCHANGEABLE
Transformer,power
Technipower Llc Dba Unipower
5310-01-287-2872W10 INTERCHANGEABLE
Washer,lock
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
3110-01-298-0559W10 INTERCHANGEABLE
Bearing,roller,cylindrical
Emglo Products Corp
Cross-Reference Index
Part NumberManufacturer
W-10 Anti-Friction Bearing Mfg Assn Inc the (USA)
905E776 ITEM 43 Fluor Marine Propulsion, Llc (USA)
W-10 Whittet-Higgins Company (USA)
Related Parts
5310-00-186-0969INTERCHANGEABLE
WASHER,KEY
5955-00-264-5310INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
531574-001
5920-00-280-3145INTERCHANGEABLE
FUSE,PLUG
5905-00-284-3423INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
58-25KOHMPORM10PCTSTAPER
2920-00-540-8354INTERCHANGEABLE
SPARK PLUG
354799R91
5310-00-637-9541INTERCHANGEABLE
WASHER,LOCK
019-00004-42
5330-00-678-7106INTERCHANGEABLE
SEAL,PLAIN ENCASED
49336
5950-00-849-2588INTERCHANGEABLE
TRANSFORMER,POWER
W10
5310-01-287-2872INTERCHANGEABLE
WASHER,LOCK
W10
3110-01-298-0559INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
W10
5999-01-417-4653INTERCHANGEABLE
HEATER,THERMAL RELEASE
W10
7021-01-531-2875INTERCHANGEABLE
COMPUTER,DIGITAL

Frequently Asked Questions

What is NSN 5310-01-132-8555?

NSN 5310-01-132-8555 is a Washer,key, manufactured by Anti-Friction Bearing Mfg Assn Inc the, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-132-8555?

NSN 5310-01-132-8555 has 3 cross-referenced part numbers: W-10 (Anti-Friction Bearing Mfg Assn Inc the), 905E776 ITEM 43 (Fluor Marine Propulsion, Llc), W-10 (Whittet-Higgins Company).

What NSN replaces 5310-01-132-8555?

There are 12 known substitutes for 5310-01-132-8555: 5310-00-186-0969, 5955-00-264-5310, 5920-00-280-3145 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W-10?

Key specifications for W-10: Internal Prebent Key Length: 0.125 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN; Hole Diameter: 1.992 INCHES MINIMUM AND 2.017 INCHES MAXIMUM IN; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OR STEEL COMP 303CU OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 304H OVERALL; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION. 15 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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