PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37081Washer,flat

Unison Industries Llc · NSN 5310-00-883-5898 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-883-5898 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-883-5898. Primary manufacturer part number: 37081.
Features
  • Washer,flat — FSC 5310
  • Material Document and Classification: 17517,FSCM 83311 MFR REF SINGLE MATERIAL RESPONSE OVERALL
  • Material: RUBBER SYNTHETIC OVERALL
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.833 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN
  • Hole Diameter: 0.535 INCHES MINIMUM AND 0.555 INCHES MAXIMUM 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 5310-00-883-5898, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Unison Industries Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-883-5898
Primary Part Number37081
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUnison Industries Llc
StatusACTIVE
Material Document and Classification17517,FSCM 83311 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MaterialRUBBER SYNTHETIC OVERALL
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.833 INCHES MINIMUM AND 0.853 INCHES MAXIMUM IN
Hole Diameter0.535 INCHES MINIMUM AND 0.555 INCHES MAXIMUM IN
Thickness0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5110-00-233-9688 INTERCHANGEABLE
File,hand
5110-00-239-3262 INTERCHANGEABLE
File,hand
5330-00-500-298137081 INTERCHANGEABLE
Gasket
Setra Systems, Inc. Dba Gems Sensors
6610-01-108-46873708-1 INTERCHANGEABLE
Mount,hairspring
Kearflex Engineering Company
5120-01-654-2157 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
37081 PRIMARY Unison Industries Llc (USA)
37081 Unison Industries, Llc Dba Unison Industries Inc (USA)
Related Parts
5110-00-233-9688INTERCHANGEABLE
FILE,HAND
5110-00-239-3262INTERCHANGEABLE
FILE,HAND
5330-00-500-2981INTERCHANGEABLE
GASKET
37081
6610-01-108-4687INTERCHANGEABLE
MOUNT,HAIRSPRING
3708-1
5120-01-654-2157INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5310-00-883-5898?

NSN 5310-00-883-5898 is a Washer,flat, manufactured by Unison Industries Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-883-5898?

NSN 5310-00-883-5898 has 2 cross-referenced part numbers: 37081 (Unison Industries Llc), 37081 (Unison Industries, Llc Dba Unison Industries Inc).

What NSN replaces 5310-00-883-5898?

There are 5 known substitutes for 5310-00-883-5898: 5110-00-233-9688, 5110-00-239-3262, 5330-00-500-2981 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37081?

Key specifications for 37081: Material Document and Classification: 17517,FSCM 83311 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Material: RUBBER SYNTHETIC OVERALL; Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND. 8 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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