PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

921-006Washer,spring Tension

Cooper Vision Diagnostic Imaging · NSN 5310-01-257-5049 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-257-5049 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-257-5049. Primary manufacturer part number: 921-006.
Features
  • Washer,spring Tension — FSC 5310
  • 3 verified cross-references
  • Primary manufacturer: Cooper Vision Diagnostic Imaging
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 5310-01-257-5049, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cooper Vision Diagnostic Imaging. 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.

Catalog Facts
Item NameWasher,spring Tension
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersCooper Vision Diagnostic Imaging (CAGE 42741); Dorman Products, Inc. Dba Dorman (CAGE 72741); Auto Vehicle Parts Co Dba Au-Ve-Co (CAGE 70655)
Technical Specifications
ParameterValue
NSN5310-01-257-5049
Primary Part Number921-006
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCooper Vision Diagnostic Imaging
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-227-5956 INTERCHANGEABLE
Drill,twist
5133-00-232-2868 INTERCHANGEABLE
Drill,twist
4320-00-398-839710593 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
2530-00-423-2624921006 INTERCHANGEABLE
Push Rod,hydraulic Brake Master
Chrysler Realty Company Llc Dba Daimler Chrysler
4820-00-474-0293NB21059333 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
2910-00-712-843910593 INTERCHANGEABLE
Parts Kit,engine Fuel Pump
Mcculloch Corp
5977-00-891-515210-5979 INTERCHANGEABLE
Brush Set,electrical Contact
Ametek Inc Lamb Electric Div
5935-00-985-5444HBL7940 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
4320-01-021-588992-1006 INTERCHANGEABLE
Piston,pump
Mayfran Holdings, Inc.
5950-01-029-08531219-101 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
Cross-Reference Index
Part NumberManufacturer
921-006 Cooper Vision Diagnostic Imaging (USA)
921-006 Dorman Products, Inc. Dba Dorman (USA)
10593 Auto Vehicle Parts Co Dba Au-Ve-Co (USA)
Related Parts
5133-00-227-5956INTERCHANGEABLE
DRILL,TWIST
5133-00-232-2868INTERCHANGEABLE
DRILL,TWIST
4320-00-398-8397INTERCHANGEABLE
RING,WEARING
10593
2530-00-423-2624INTERCHANGEABLE
PUSH ROD,HYDRAULIC BRAKE MASTER
921006
4820-00-474-0293INTERCHANGEABLE
SEAT,VALVE
NB21059333
2910-00-712-8439INTERCHANGEABLE
PARTS KIT,ENGINE FUEL PUMP
10593
5977-00-891-5152INTERCHANGEABLE
BRUSH SET,ELECTRICAL CONTACT
10-5979
5935-00-985-5444INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
HBL7940
4320-01-021-5889INTERCHANGEABLE
PISTON,PUMP
92-1006
5950-01-029-0853INTERCHANGEABLE
TRANSFORMER,POWER
1219-101
5930-01-293-7672INTERCHANGEABLE
PUSH BUTTON
921006
6625-01-440-8403INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
10593

Frequently Asked Questions

What is NSN 5310-01-257-5049?

NSN 5310-01-257-5049 is a Washer,spring Tension, manufactured by Cooper Vision Diagnostic Imaging, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-257-5049?

NSN 5310-01-257-5049 has 3 cross-referenced part numbers: 921-006 (Cooper Vision Diagnostic Imaging), 921-006 (Dorman Products, Inc. Dba Dorman), 10593 (Auto Vehicle Parts Co Dba Au-Ve-Co).

What NSN replaces 5310-01-257-5049?

There are 12 known substitutes for 5310-01-257-5049: 5133-00-227-5956, 5133-00-232-2868, 4320-00-398-8397 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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