PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

212506Washer,spring Tension

Kidde-Fenwal, Llc · NSN 5310-00-143-6351 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-143-6351 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-143-6351. Primary manufacturer part number: 212506.
Features
  • Washer,spring Tension — FSC 5310
  • Outside Diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
  • Hole Diameter: 1.068 INCHES MINIMUM AND 1.088 INCHES MAXIMUM IN
  • Material Thickness: 0.017 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Kidde-Fenwal, 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 5310-00-143-6351, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-143-6351
Primary Part Number212506
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerKidde-Fenwal, Llc
StatusCANCELLED
Outside Diameter1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
Hole Diameter1.068 INCHES MINIMUM AND 1.088 INCHES MAXIMUM IN
Material Thickness0.017 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5950-00-219-6584375-1188 G1 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company Dba Raytheon Co
5975-00-266-1984 INTERCHANGEABLE
Ferrule,electrical Conduit
4320-00-977-2807212506 INTERCHANGEABLE
Impeller,pump,centrifugal
Curtiss-Wright Electro-Mechanical Corporation Div Epd
Cross-Reference Index
Part NumberManufacturer
212506 Kidde-Fenwal, Llc (USA)
4025193-6 Allis-Chalmers Corp (USA)
3541-37-00 Itw Shakeproof Automotive Products (USA)
4025193 Allis-Chalmers Corp (USA)
212506 Valcor Engineering Corporation (USA)
4025193 Agco Corp Parts Opn (USA)
Related Parts
5950-00-219-6584INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
375-1188 G1
5975-00-266-1984INTERCHANGEABLE
FERRULE,ELECTRICAL CONDUIT
4320-00-977-2807INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
212506

Frequently Asked Questions

What is NSN 5310-00-143-6351?

NSN 5310-00-143-6351 is a Washer,spring Tension, manufactured by Kidde-Fenwal, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-143-6351?

NSN 5310-00-143-6351 has 6 cross-referenced part numbers: 212506 (Kidde-Fenwal, Llc), 4025193-6 (Allis-Chalmers Corp), 3541-37-00 (Itw Shakeproof Automotive Products), 4025193 (Allis-Chalmers Corp), 212506 (Valcor Engineering Corporation) and 1 more.

What NSN replaces 5310-00-143-6351?

There are 3 known substitutes for 5310-00-143-6351: 5950-00-219-6584, 5975-00-266-1984, 4320-00-977-2807. Verify interchangeability with system specifications before substitution.

What are the specifications of 212506?

Key specifications for 212506: Overall Height: 0.088 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Outside Diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN; Hole Diameter: 1.068 INCHES MINIMUM AND 1.088 INCHES MAXIMUM IN; Material Thickness: 0.017 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-143-6351 still in active supply?

NSN 5310-00-143-6351 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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