PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-840808-01Washer,spring Tension

Marathon Electric, Llc · NSN 5310-00-655-9969 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-655-9969 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-655-9969. Primary manufacturer part number: A-840808-01.
Features
  • Washer,spring Tension — FSC 5310
  • Material Thickness: 0.030 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Outside Diameter: 2.812 INCHES NOMINAL IN
  • Hole Diameter: 2.197 INCHES NOMINAL IN
  • 26 verified cross-references
  • Primary manufacturer: Marathon Electric, Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Mechanical energy storage
  • Vibration dampening
General Description

The Washer,spring Tension, cataloged under National Stock Number 5310-00-655-9969, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Marathon Electric, Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 26 commercial cross-references from 13 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
NSN5310-00-655-9969
Primary Part NumberA-840808-01
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMarathon Electric, Llc
StatusCANCELLED
Material Thickness0.030 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Outside Diameter2.812 INCHES NOMINAL IN
Hole Diameter2.197 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4240-00-026-8353 INTERCHANGEABLE
Belt,safety
5815-00-126-817474197 INTERCHANGEABLE
Roller,bail
Telemechanics Inc
5360-00-328-1056194564 INTERCHANGEABLE
Spring,by Pass Valv
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5915-00-500-99922920137-21 INTERCHANGEABLE
Filter,band Pass
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5990-00-503-0039 INTERCHANGEABLE
Synchro,transmitter
5340-00-535-7222 INTERCHANGEABLE
Clevis,rod End
3120-00-662-86501945-64 INTERCHANGEABLE
Bearing,sleeve
General Electric Company
2530-01-085-407374197 INTERCHANGEABLE
Hub Cap
Hdt Expeditionary Systems Inc
4320-01-115-381594021 INTERCHANGEABLE
Pump
United States Plastic Corp
5910-01-239-7509 INTERCHANGEABLE
Capacitor,variable,ceramic Diele
Cross-Reference Index
Part NumberManufacturer
A-840808-01 Marathon Electric, Llc (USA)
720 Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol (USA)
D84-941-68PC17 Electric Boat Corp Dba Electro Dynamic (USA)
SCB104216 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
72 Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol (USA)
A-48900-C Zf Industrieantriebe Witten Gmbh (DEU)
R225-250 Peerless-Winsmith, Inc. Dba Peerless Winsmith (USA)
74197 Barnes Group Inc (USA)
D84-941-63PC58 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
D84-941-68PC17 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
A48900C Electric Boat Corporation Div General Dynamics Electric Boat (USA)
791-502-9010 Honeywell International Inc. Div Aerospace - Torrance (USA)
D26-943-21GP1PC44 Electric Boat Corp Dba Electro Dynamic (USA)
48900C Electric Boat Corp Dba Electro Dynamic (USA)
D26-943-21GP1PC44 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
D84-941-63PC58 Electric Boat Corp Dba Electro Dynamic (USA)
840808-01 Lima Electric Co Inc the (USA)
48900C Electric Boat Corporation Div General Dynamics Electric Boat (USA)
94021 Reuland Electric Co (USA)
A48900C Electric Boat Corp Dba Electro Dynamic (USA)
Related Parts
4240-00-026-8353INTERCHANGEABLE
BELT,SAFETY
5815-00-126-8174INTERCHANGEABLE
ROLLER,BAIL
74197
5360-00-328-1056INTERCHANGEABLE
SPRING,BY PASS VALV
194564
5915-00-500-9992INTERCHANGEABLE
FILTER,BAND PASS
2920137-21
5990-00-503-0039INTERCHANGEABLE
SYNCHRO,TRANSMITTER
5340-00-535-7222INTERCHANGEABLE
CLEVIS,ROD END
3120-00-662-8650INTERCHANGEABLE
BEARING,SLEEVE
1945-64
2530-01-085-4073INTERCHANGEABLE
HUB CAP
74197
4320-01-115-3815INTERCHANGEABLE
PUMP
94021
5910-01-239-7509INTERCHANGEABLE
CAPACITOR,VARIABLE,CERAMIC DIELE
4920-01-300-2002INTERCHANGEABLE
TEST PROGRAM SET
94021
5330-01-311-7046INTERCHANGEABLE
PACKING ASSEMBLY
74197

Frequently Asked Questions

What is NSN 5310-00-655-9969?

NSN 5310-00-655-9969 is a Washer,spring Tension, manufactured by Marathon Electric, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-655-9969?

NSN 5310-00-655-9969 has 26 cross-referenced part numbers: A-840808-01 (Marathon Electric, Llc), 720 (Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol), D84-941-68PC17 (Electric Boat Corp Dba Electro Dynamic), SCB104216 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 72 (Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol) and 21 more.

What NSN replaces 5310-00-655-9969?

There are 12 known substitutes for 5310-00-655-9969: 4240-00-026-8353, 5815-00-126-8174, 5360-00-328-1056 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-840808-01?

Key specifications for A-840808-01: Material Thickness: 0.030 INCHES NOMINAL IN; Material: STEEL OVERALL; Overall Height: 0.197 INCHES NOMINAL IN; Outside Diameter: 2.812 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-655-9969 still in active supply?

NSN 5310-00-655-9969 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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