PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

810020-6O-Ring

Stillman Seal Corporation Div Stillman Seal Corperation · NSN 5331-00-279-9208 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-279-9208 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-279-9208. Primary manufacturer part number: 810020-6.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Center Hole Diameter: 0.174 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Stillman Seal Corporation Div Stillman Seal Corperation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-279-9208, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Stillman Seal Corporation Div Stillman Seal Corperation. Government technical data includes 3 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-279-9208
Primary Part Number810020-6
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerStillman Seal Corporation Div Stillman Seal Corperation
StatusACTIVE
Cross-Sectional Height0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR
Center Hole Diameter0.174 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5331-00-322-013700179-025F70 INTERCHANGEABLE
O-Ring
Freudenberg-Nok General Partnership Dba International Seal Co Inc
6145-01-067-522511284 INTERCHANGEABLE
Cable,radio Frequency
Nexans Aerospace Usa Llc
3820-01-205-7895 INTERCHANGEABLE
Breaker,paving
5811-01-246-23558100206 INTERCHANGEABLE
Pc Assy
Advance Computer Communications Dba Acc
Cross-Reference Index
Part NumberManufacturer
810020-6 PRIMARY Stillman Seal Corporation Div Stillman Seal Corperation (USA)
810020-6 Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa (MEX)
Related Parts
5331-00-322-0137INTERCHANGEABLE
O-RING
00179-025F70
6145-01-067-5225INTERCHANGEABLE
CABLE,RADIO FREQUENCY
11284
3820-01-205-7895INTERCHANGEABLE
BREAKER,PAVING
5811-01-246-2355INTERCHANGEABLE
PC ASSY
8100206

Frequently Asked Questions

What is NSN 5331-00-279-9208?

NSN 5331-00-279-9208 is a O-Ring, manufactured by Stillman Seal Corporation Div Stillman Seal Corperation, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-279-9208?

NSN 5331-00-279-9208 has 2 cross-referenced part numbers: 810020-6 (Stillman Seal Corporation Div Stillman Seal Corperation), 810020-6 (Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa).

What NSN replaces 5331-00-279-9208?

There are 4 known substitutes for 5331-00-279-9208: 5331-00-322-0137, 6145-01-067-5225, 3820-01-205-7895 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 810020-6?

Key specifications for 810020-6: Cross-Sectional Height: 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR; Center Hole Diameter: 0.174 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN. 3 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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