PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500-18Washer,spring Tension

Barnes Group Inc · NSN 5310-00-817-1011 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-817-1011 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-817-1011. Primary manufacturer part number: 500-18.
Features
  • Washer,spring Tension — FSC 5310
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material Thickness: 0.018 INCHES NOMINAL IN
  • Hole Diameter: 0.255 INCHES NOMINAL IN
  • Material: STEEL COMP 1074 OVERALL
  • Style Designator: SPRING TENSION
  • Outside Diameter: 0.500 INCHES NOMINAL IN
  • 10 verified cross-references
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 5310-00-817-1011, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Barnes Group Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-817-1011
Primary Part Number500-18
Item NameWasher,spring Tension
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBarnes Group Inc
StatusCANCELLED
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Material Thickness0.018 INCHES NOMINAL IN
Hole Diameter0.255 INCHES NOMINAL IN
MaterialSTEEL COMP 1074 OVERALL
Style DesignatorSPRING TENSION
Outside Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5330-00-179-210212520 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5905-00-535-38319003013 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Us Army Aviation and Missile Command
3110-00-554-5610365GAP INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5360-00-838-0452500-18 INTERCHANGEABLE
Spring,valve
Rotary Vacuum Pumps Inc
5355-00-958-9986MS91528-1C1B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4320-01-035-3929 INTERCHANGEABLE
Valve Rod
4610-01-134-2399500-18 INTERCHANGEABLE
Kit
Veolia Wts Systems Usa, Inc. Dba Ge Water & Process Technologies
4520-01-315-7596 INTERCHANGEABLE
Heating Element,electrical,immer
8115-01-417-532750018 INTERCHANGEABLE
Box,small Parts
Flambeau Inc
5330-01-548-2855E10189 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
Kirkhill, Inc. Dba Kirkhill Inc
Cross-Reference Index
Part NumberManufacturer
36A224355P3 General Electric Co Armament and Electrical Systems Dept Electrical Systems Products Dept (USA)
500-18 PRIMARY Barnes Group Inc (USA)
500-18 Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol (USA)
ES2081-03 Drs Sustainment Systems, Inc. (USA)
7528285P0009 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
36A224355P1 Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
7528285P9 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
36A224355P3 Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
36A224355P1 General Electric Co Armament and Electrical Systems Dept Electrical Systems Products Dept (USA)
36A224355P3 General Electric Company (USA)
Related Parts
5330-00-179-2102INTERCHANGEABLE
SEAL,PLAIN ENCASED
12520
5905-00-535-3831INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
9003013
3110-00-554-5610INTERCHANGEABLE
BEARING,BALL,ANNULAR
365GAP
5360-00-838-0452INTERCHANGEABLE
SPRING,VALVE
500-18
5355-00-958-9986INTERCHANGEABLE
KNOB
MS91528-1C1B
4320-01-035-3929INTERCHANGEABLE
VALVE ROD
4610-01-134-2399INTERCHANGEABLE
KIT
500-18
4520-01-315-7596INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,IMMER
8115-01-417-5327INTERCHANGEABLE
BOX,SMALL PARTS
50018
5330-01-548-2855INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
E10189
6830-01-623-2000INTERCHANGEABLE
CALIBRATING GAS MIXTURE
50018

Frequently Asked Questions

What is NSN 5310-00-817-1011?

NSN 5310-00-817-1011 is a Washer,spring Tension, manufactured by Barnes Group Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-817-1011?

NSN 5310-00-817-1011 has 10 cross-referenced part numbers: 36A224355P3 (General Electric Co Armament and Electrical Systems Dept Electrical Systems Products Dept), 500-18 (Barnes Group Inc), 500-18 (Barnes Group Inc. Dba Associated Spring Div Associated Spring Bristol), ES2081-03 (Drs Sustainment Systems, Inc.), 7528285P0009 (Lockheed Martin Corp Naval Electronics & Surveillance Systems) and 5 more.

What NSN replaces 5310-00-817-1011?

There are 11 known substitutes for 5310-00-817-1011: 5330-00-179-2102, 5905-00-535-3831, 3110-00-554-5610 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 500-18?

Key specifications for 500-18: Overall Height: 0.034 INCHES NOMINAL IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material Thickness: 0.018 INCHES NOMINAL IN; Hole Diameter: 0.255 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-817-1011 still in active supply?

NSN 5310-00-817-1011 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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