PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

535-6Washer,flat

Unicontrol Inc Hays Cleveland Div · NSN 5310-00-599-3328 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-599-3328 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-599-3328. Primary manufacturer part number: 535-6.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Material: RUBBER SYNTHETIC OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.250 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Thickness: 0.062 INCHES NOMINAL IN
  • Overall Diameter: 0.375 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-599-3328, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Unicontrol Inc Hays Cleveland Div. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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
NSN5310-00-599-3328
Primary Part Number535-6
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUnicontrol Inc Hays Cleveland Div
StatusCANCELLED
Peripheral Shape StyleROUND
MaterialRUBBER SYNTHETIC OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.250 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Thickness0.062 INCHES NOMINAL IN
Overall Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1005-00-009-8869 INTERCHANGEABLE
Shotgun,12 Gage
4240-00-022-3319SIF 20PPI INTERCHANGEABLE
Filter,gas-Particulate
Service Air of Denver, Inc
3110-00-100-3088 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5995-00-128-24045356 INTERCHANGEABLE
Cable Assembly,power,electrical
The First Electronics Corporation
5940-00-478-7379186059 INTERCHANGEABLE
Terminal
Telemechanics Inc
6150-00-490-7673UH33200 INTERCHANGEABLE
Lead,electrical
Clayton Manufacturing Company
5950-00-567-2567 INTERCHANGEABLE
Transformer,power
5330-00-594-91945-356 INTERCHANGEABLE
Seal,nonmetallic Strip
D. S. Brown Company, the
3439-00-803-9491AWSA5.10-80 ER536 0.062 10LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-803-9498AWSA5.10-69 ER5356 0.047 1/2 LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
Cross-Reference Index
Part NumberManufacturer
3279536 General Motors Llc Dba General Motors Llc (USA)
535-6 PRIMARY Unicontrol Inc Hays Cleveland Div (USA)
3279536 General Motors Corp Electro-Motive Div (USA)
3279536 General Motors Corp (USA)
186059 Woodward, Inc. Div Fuel Systems and Controls (USA)
186059 PRIMARY Woodward, Inc. (USA)
3279536 PRIMARY Hatch & Kirk, Inc. (USA)
Related Parts
1005-00-009-8869INTERCHANGEABLE
SHOTGUN,12 GAGE
4240-00-022-3319INTERCHANGEABLE
FILTER,GAS-PARTICULATE
SIF 20PPI
3110-00-100-3088INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5995-00-128-2404INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
5356
5940-00-478-7379INTERCHANGEABLE
TERMINAL
186059
6150-00-490-7673INTERCHANGEABLE
LEAD,ELECTRICAL
UH33200
5950-00-567-2567INTERCHANGEABLE
TRANSFORMER,POWER
5330-00-594-9194INTERCHANGEABLE
SEAL,NONMETALLIC STRIP
5-356
3439-00-803-9491INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.10-80 ER536 0.062 10LB
3439-00-803-9498INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.10-69 ER5356 0.047 1/2 LB
3439-00-806-2725INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.10-80 ER5356 0.047 10LB
3439-00-873-2320INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.10-80 ER5356 0.062 12.5LB

Frequently Asked Questions

What is NSN 5310-00-599-3328?

NSN 5310-00-599-3328 is a Washer,flat, manufactured by Unicontrol Inc Hays Cleveland Div, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-599-3328?

NSN 5310-00-599-3328 has 7 cross-referenced part numbers: 3279536 (General Motors Llc Dba General Motors Llc), 535-6 (Unicontrol Inc Hays Cleveland Div), 3279536 (General Motors Corp Electro-Motive Div), 3279536 (General Motors Corp), 186059 (Woodward, Inc. Div Fuel Systems and Controls) and 2 more.

What NSN replaces 5310-00-599-3328?

There are 12 known substitutes for 5310-00-599-3328: 1005-00-009-8869, 4240-00-022-3319, 3110-00-100-3088 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 535-6?

Key specifications for 535-6: Peripheral Shape Style: ROUND; Material: RUBBER SYNTHETIC OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Hole Diameter: 0.250 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-599-3328 still in active supply?

NSN 5310-00-599-3328 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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