PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8321-2O-Ring

Cummins Inc. · NSN 5331-00-599-0888 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-599-0888 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-599-0888. Primary manufacturer part number: 8321-2.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER SYNTHETIC
  • Cross-Sectional Height: 0.250 INCHES NOMINAL IN
  • 9 verified cross-references
  • Primary manufacturer: Cummins Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-599-0888, 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 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-599-0888
Primary Part Number8321-2
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCummins Inc.
StatusCANCELLED
MaterialRUBBER SYNTHETIC
Cross-Sectional Height0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-010-6850 INTERCHANGEABLE
Setscrew
5306-00-032-560318207-1 INTERCHANGEABLE
Bolt
Textron Aviation Inc
5998-00-106-226932-12 INTERCHANGEABLE
Circuit Card Assembly
Nuspace, Inc
5133-00-189-9246 INTERCHANGEABLE
Drill,twist
4820-00-203-7173277-1 INTERCHANGEABLE
Valve,check
The Walworth Company
9540-00-231-9761 INTERCHANGEABLE
Beam,structural
5310-00-276-8631 INTERCHANGEABLE
Nut,plain,hexagon
2990-00-363-599521850 INTERCHANGEABLE
Muffler,exhaust
Walker Mfg Co
5915-00-377-573211444 INTERCHANGEABLE
Filter,radio Frequency Interfere
Cornell-Dubilier Marketing Inc
3120-00-447-354911444 INTERCHANGEABLE
Bushing,sleeve
Dressta North America Ltd
Cross-Reference Index
Part NumberManufacturer
27-71 Parker-Hannifin Corporation Div O-Ring Division (USA)
1820-71 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
6-1-1953-36-23A Ametek Inc Heat Transfer Div (USA)
11-444 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
6-1-1953-36-23 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
6-1-1953-36-23A Eidal International Corporation (USA)
5331PL0900531 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AN6227-71 Federal-Mogul Corp Chassis Products Div (USA)
8321-2 PRIMARY Cummins Inc. (USA)
Related Parts
5305-00-010-6850INTERCHANGEABLE
SETSCREW
5306-00-032-5603INTERCHANGEABLE
BOLT
18207-1
5998-00-106-2269INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
32-12
5133-00-189-9246INTERCHANGEABLE
DRILL,TWIST
4820-00-203-7173INTERCHANGEABLE
VALVE,CHECK
277-1
9540-00-231-9761INTERCHANGEABLE
BEAM,STRUCTURAL
5310-00-276-8631INTERCHANGEABLE
NUT,PLAIN,HEXAGON
2990-00-363-5995INTERCHANGEABLE
MUFFLER,EXHAUST
21850
5915-00-377-5732INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
11444
3120-00-447-3549INTERCHANGEABLE
BUSHING,SLEEVE
11444
6160-00-488-4591INTERCHANGEABLE
RETAINER,BATTERY
5330-00-499-3238INTERCHANGEABLE
SEAL,PLAIN
182071

Frequently Asked Questions

What is NSN 5331-00-599-0888?

NSN 5331-00-599-0888 is a O-Ring, manufactured by Cummins Inc., classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-599-0888?

NSN 5331-00-599-0888 has 9 cross-referenced part numbers: 27-71 (Parker-Hannifin Corporation Div O-Ring Division), 1820-71 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer), 6-1-1953-36-23A (Ametek Inc Heat Transfer Div), 11-444 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer), 6-1-1953-36-23 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center) and 4 more.

What NSN replaces 5331-00-599-0888?

There are 12 known substitutes for 5331-00-599-0888: 5305-00-010-6850, 5306-00-032-5603, 5998-00-106-2269 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8321-2?

Key specifications for 8321-2: Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.250 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-599-0888 still in active supply?

NSN 5331-00-599-0888 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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