PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128087O-Ring

Cummins Inc. · NSN 5331-00-821-9162 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-821-9162 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-821-9162. Primary manufacturer part number: 128087.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU
  • Cross-Sectional Height: 0.062 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Cummins Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr or Rubber Polyester Urethane Class Au or Rubber Polyether Urethane Class Eu construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-821-9162, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 2 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-821-9162
Primary Part Number128087
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCummins Inc.
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU
Cross-Sectional Height0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2530-00-466-9732404453 INTERCHANGEABLE
Steering Wheel
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5961-01-298-6080128087 INTERCHANGEABLE
Semiconductor Device,photo
Beede Electrical Instrument Co. Inc.
Cross-Reference Index
Part NumberManufacturer
128087 PRIMARY Cummins Inc. (USA)
Related Parts
2530-00-466-9732INTERCHANGEABLE
STEERING WHEEL
404453
5961-01-298-6080INTERCHANGEABLE
SEMICONDUCTOR DEVICE,PHOTO
128087

Frequently Asked Questions

What is NSN 5331-00-821-9162?

NSN 5331-00-821-9162 is a O-Ring, manufactured by Cummins Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-821-9162?

NSN 5331-00-821-9162 has 1 cross-referenced part number: 128087 (Cummins Inc.).

What NSN replaces 5331-00-821-9162?

There are 2 known substitutes for 5331-00-821-9162: 2530-00-466-9732, 5961-01-298-6080. Verify interchangeability with system specifications before substitution.

What are the specifications of 128087?

Key specifications for 128087: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU; Cross-Sectional Height: 0.062 INCHES NOMINAL IN. 2 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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