PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1155F20 PIECE 115Washer,key

Fluor Marine Propulsion, Llc · NSN 5310-01-103-8840 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-103-8840 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-103-8840. Primary manufacturer part number: 1155F20 PIECE 115.
Features
  • Washer,key — FSC 5310
  • External Key Quantity: 11
  • Internal Prebent Key Length: 0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Style Designator: KEY
  • Internal Prebent Key Width: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
  • Overall Distance Including Keys: 1.0935 INCHES MINIMUM AND 1.1560 INCHES MAXIMUM IN
  • Criticality Code Justification: ZZZY
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-01-103-8840, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fluor Marine Propulsion, Llc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5310-01-103-8840
Primary Part Number1155F20 PIECE 115
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFluor Marine Propulsion, Llc
StatusCANCELLED
External Key Quantity11
Internal Prebent Key Length0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
MaterialSTEEL CORROSION RESISTING OVERALL
Style DesignatorKEY
Internal Prebent Key Width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Overall Distance Including Keys1.0935 INCHES MINIMUM AND 1.1560 INCHES MAXIMUM IN
Criticality Code JustificationZZZY
Departure From Cited DocumentAS MODIFIED BY MATERIAL
Special Test FeaturesSPECIAL QUALITY CONTROL TESTING
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.).
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Material Thickness0.042 INCHES NOMINAL IN
External Prebent Key Width0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
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
Outside Diameter0.812 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
Heat TreatmentANNEALED
Hole Diameter0.601 INCHES MINIMUM AND 0.616 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-045-3810 INTERCHANGEABLE
Washer,key
5310-00-186-0961 INTERCHANGEABLE
Washer,key
5310-00-190-2907PB19091 INTERCHANGEABLE
Washer,flat
Mission Systems Davenport Inc.
5961-00-536-1559 INTERCHANGEABLE
Semiconductor Device,diode
4820-00-606-93686636 INTERCHANGEABLE
Locknut
Eaton Aerospace, Llc Dba Jackson South
5961-00-909-7383W02 INTERCHANGEABLE
Rectifier,semiconductor Device,u
General Semiconductor Inc
5905-01-036-6025 INTERCHANGEABLE
Resistor,fixed,film
5961-01-050-4843 INTERCHANGEABLE
Rectifier,semiconductor Device,u
5310-01-132-8554 INTERCHANGEABLE
Washer,key
4320-01-205-0807W0-2 INTERCHANGEABLE
Modification Kit,pumps and Compr
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
1155F20 PIECE 115 Fluor Marine Propulsion, Llc (USA)
928212 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
W-02 Anti-Friction Bearing Mfg Assn Inc the (USA)
928212 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5310-00-045-3810INTERCHANGEABLE
WASHER,KEY
5310-00-186-0961INTERCHANGEABLE
WASHER,KEY
5310-00-190-2907INTERCHANGEABLE
WASHER,FLAT
PB19091
5961-00-536-1559INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4820-00-606-9368INTERCHANGEABLE
LOCKNUT
6636
5961-00-909-7383INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
W02
5905-01-036-6025INTERCHANGEABLE
RESISTOR,FIXED,FILM
5961-01-050-4843INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
5310-01-132-8554INTERCHANGEABLE
WASHER,KEY
4320-01-205-0807INTERCHANGEABLE
MODIFICATION KIT,PUMPS AND COMPR
W0-2
5961-01-382-7891INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N645
5820-01-536-8977INTERCHANGEABLE
DEMULTIPLEXER
FF6745-1

Frequently Asked Questions

What is NSN 5310-01-103-8840?

NSN 5310-01-103-8840 is a Washer,key, manufactured by Fluor Marine Propulsion, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-103-8840?

NSN 5310-01-103-8840 has 4 cross-referenced part numbers: 1155F20 PIECE 115 (Fluor Marine Propulsion, Llc), 928212 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), W-02 (Anti-Friction Bearing Mfg Assn Inc the), 928212 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5310-01-103-8840?

There are 12 known substitutes for 5310-01-103-8840: 5310-00-045-3810, 5310-00-186-0961, 5310-00-190-2907 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1155F20 PIECE 115?

Key specifications for 1155F20 PIECE 115: External Key Quantity: 11; Internal Prebent Key Length: 0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN; Material: STEEL CORROSION RESISTING OVERALL; Style Designator: KEY. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-103-8840 still in active supply?

NSN 5310-01-103-8840 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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