PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204757Washer,spring Tension

Brp Us Inc · NSN 5310-00-121-8320 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-121-8320 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-121-8320. Primary manufacturer part number: 204757.
Features
  • Washer,spring Tension — FSC 5310
  • Hole Diameter: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
  • Outside Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Material Thickness: 0.010 INCHES NOMINAL IN
  • Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 410 OVERALL
  • 4 verified cross-references
  • Primary manufacturer: Brp Us Inc
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 5310-00-121-8320, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Brp Us Inc. Government technical data includes 5 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-121-8320
Primary Part Number204757
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBrp Us Inc
StatusACTIVE
Hole Diameter0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Outside Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Material Thickness0.010 INCHES NOMINAL IN
Material Document and ClassificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 410 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3020-00-152-8344206333 INTERCHANGEABLE
Gear,drive Motion
Clark Material Handling Company
Cross-Reference Index
Part NumberManufacturer
204757 Outboard Marine Corp Johnson Motors Div (USA)
204757 Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors (GBR)
204757 Evinrude Motors Product Group of Outboard Marine Corp (USA)
204757 PRIMARY Brp Us Inc (USA)
Related Parts
3020-00-152-8344INTERCHANGEABLE
GEAR,DRIVE MOTION
206333

Frequently Asked Questions

What is NSN 5310-00-121-8320?

NSN 5310-00-121-8320 is a Washer,spring Tension, manufactured by Brp Us Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-121-8320?

NSN 5310-00-121-8320 has 4 cross-referenced part numbers: 204757 (Outboard Marine Corp Johnson Motors Div), 204757 (Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors), 204757 (Evinrude Motors Product Group of Outboard Marine Corp), 204757 (Brp Us Inc).

What NSN replaces 5310-00-121-8320?

There is 1 known substitute for 5310-00-121-8320: 3020-00-152-8344. Verify interchangeability with system specifications before substitution.

What are the specifications of 204757?

Key specifications for 204757: Hole Diameter: 0.271 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN; Outside Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Overall Height: 0.085 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Material Thickness: 0.010 INCHES NOMINAL IN. 6 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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