PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

68-837O-Ring

Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes) · NSN 5331-00-187-7321 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-187-7321 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-187-7321. Primary manufacturer part number: 68-837.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Center Hole Diameter: 7.204 INCHES MINIMUM AND 7.264 INCHES MAXIMUM IN
  • Material: RUBBER
  • 1 verified cross-reference
  • Primary manufacturer: Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-187-7321, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes). Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-187-7321
Primary Part Number68-837
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerGoodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
StatusACTIVE
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Center Hole Diameter7.204 INCHES MINIMUM AND 7.264 INCHES MAXIMUM IN
MaterialRUBBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2910-00-142-0868 INTERCHANGEABLE
Bowl,sediment
Cross-Reference Index
Part NumberManufacturer
68-837 PRIMARY Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes) (USA)
Related Parts
2910-00-142-0868INTERCHANGEABLE
BOWL,SEDIMENT

Frequently Asked Questions

What is NSN 5331-00-187-7321?

NSN 5331-00-187-7321 is a O-Ring, manufactured by Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes), classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-187-7321?

NSN 5331-00-187-7321 has 1 cross-referenced part number: 68-837 (Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)).

What NSN replaces 5331-00-187-7321?

There is 1 known substitute for 5331-00-187-7321: 2910-00-142-0868. Verify interchangeability with system specifications before substitution.

What are the specifications of 68-837?

Key specifications for 68-837: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 7.204 INCHES MINIMUM AND 7.264 INCHES MAXIMUM IN; Material: RUBBER. 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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