PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

902-21O-Ring

Parker Hannifin Corporation Div O-Ring Division · NSN 5331-00-726-8802 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-726-8802 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-726-8802. Primary manufacturer part number: 902-21.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.125 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Parker Hannifin Corporation Div O-Ring Division
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-726-8802, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-726-8802
Primary Part Number902-21
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerParker Hannifin Corporation Div O-Ring Division
StatusCANCELLED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6220-00-001-15143621893 INTERCHANGEABLE
Lens,light
Chrysler Corp Service and Parts Opns
5342-00-886-0141BACL10AB1 INTERCHANGEABLE
Handle Assy
The Boeing Company Div Defense
5331-01-211-6074216.07377 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Div Integrated Sealing Systems Division
5345-01-276-2986 INTERCHANGEABLE
Belt,abrasive
5945-01-326-1455GR835SS2 INTERCHANGEABLE
Relay,hybrid
Northrop Grumman Systems Corporation
8465-01-396-992890392 INTERCHANGEABLE
Reservoir,hydration System
Camelbak Products, Llc Dba Camelbak
5985-01-411-76969022-1 INTERCHANGEABLE
Attenuator,variable
Spectrum Control Inc Div Weinschel
4130-01-413-0608 INTERCHANGEABLE
Compressor,refrigeration
5930-01-415-997090221 INTERCHANGEABLE
Switch,power Proces
Air Techniques, Inc.
Cross-Reference Index
Part NumberManufacturer
AS29561-216 Sae International Dba Sae International (USA)
AS29561-216 Society of Automotive Engineers Inc (USA)
902-21 PRIMARY Parker Hannifin Corporation Div O-Ring Division (USA)
PRP902-21-142-70 Parker Hannifin Corporation Div O-Ring Division (USA)
Related Parts
6220-00-001-1514INTERCHANGEABLE
LENS,LIGHT
3621893
5342-00-886-0141INTERCHANGEABLE
HANDLE ASSY
BACL10AB1
5331-01-211-6074INTERCHANGEABLE
O-RING
216.07377
5345-01-276-2986INTERCHANGEABLE
BELT,ABRASIVE
5945-01-326-1455INTERCHANGEABLE
RELAY,HYBRID
GR835SS2
8465-01-396-9928INTERCHANGEABLE
RESERVOIR,HYDRATION SYSTEM
90392
5985-01-411-7696INTERCHANGEABLE
ATTENUATOR,VARIABLE
9022-1
4130-01-413-0608INTERCHANGEABLE
COMPRESSOR,REFRIGERATION
5930-01-415-9970INTERCHANGEABLE
SWITCH,POWER PROCES
90221

Frequently Asked Questions

What is NSN 5331-00-726-8802?

NSN 5331-00-726-8802 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-726-8802?

NSN 5331-00-726-8802 has 4 cross-referenced part numbers: AS29561-216 (Sae International Dba Sae International), AS29561-216 (Society of Automotive Engineers Inc), 902-21 (Parker Hannifin Corporation Div O-Ring Division), PRP902-21-142-70 (Parker Hannifin Corporation Div O-Ring Division).

What NSN replaces 5331-00-726-8802?

There are 9 known substitutes for 5331-00-726-8802: 6220-00-001-1514, 5342-00-886-0141, 5331-01-211-6074 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 902-21?

Key specifications for 902-21: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.125 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-726-8802 still in active supply?

NSN 5331-00-726-8802 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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