PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-1385721-8-4O-Ring

Naval Sea Systems Command · NSN 5331-01-097-8242 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-097-8242 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-097-8242. Primary manufacturer part number: 803-1385721-8-4.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Elongation Percentage: 125 MAXIMUM
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN
  • Temp Rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Outside Diameter: 2.887 INCHES NOMINAL IN
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 5331-01-097-8242, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 31 commercial cross-references from 14 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
NSN5331-01-097-8242
Primary Part Number803-1385721-8-4
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNaval Sea Systems Command
StatusCANCELLED
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
Elongation Percentage125 MAXIMUM
MaterialRUBBER SYNTHETIC
Center Hole Diameter2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN
Temp Rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Outside Diameter2.887 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6680-00-027-2972S-89 INTERCHANGEABLE
Indicator,sight,liquid
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
5330-00-152-3140 INTERCHANGEABLE
Packing
3455-00-232-904258-10146 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5331-00-252-6048MS29513-006 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5305-00-282-3230 INTERCHANGEABLE
Screw,machine
2825-00-309-16541503103 INTERCHANGEABLE
Blading Set,turbine
Westinghouse Electric Corp
5330-00-366-6424 INTERCHANGEABLE
Gasket
2920-00-377-5253 INTERCHANGEABLE
Generator,engine Accessory
2825-00-389-977826231 INTERCHANGEABLE
Lever,governor
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5360-00-430-8574 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
871231 Zf Industrieantriebe Witten Gmbh (DEU)
256348PC31 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
SAE-AS83461/1 Sae International Dba Sae International (USA)
B39823172 Zf Industrieantriebe Witten Gmbh (DEU)
2-2231 Zf Industrieantriebe Witten Gmbh (DEU)
S8-9 Zf Industrieantriebe Witten Gmbh (DEU)
513CD-231 Zf Industrieantriebe Witten Gmbh (DEU)
13168CPC91 Theonics Corp
803-1385721-8-4 PRIMARY Naval Sea Systems Command (USA)
60428 Zf Industrieantriebe Witten Gmbh (DEU)
AMS-P-83461/1 Society of Automotive Engineers Inc (USA)
ARP568-231MILP5 516-70 Zf Industrieantriebe Witten Gmbh (DEU)
M83461/1-231 Society of Automotive Engineers Inc (USA)
5D3-03848 ITEM Lake Shore Systems, Inc. (USA)
A6689.231.144 Zf Industrieantriebe Witten Gmbh (DEU)
6230-9 Zf Industrieantriebe Witten Gmbh (DEU)
26-231 Zf Industrieantriebe Witten Gmbh (DEU)
66,27X3,53-24B7 Stacem (FRA)
200-2338-320 Zf Industrieantriebe Witten Gmbh (DEU)
A50SH1PC7 Magnum Integrated Technologies Inc. Div Waterbury Farrel, Hill Acme, Loma Machine, Anker-Holth (CAN)
Related Parts
6680-00-027-2972INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
S-89
5330-00-152-3140INTERCHANGEABLE
PACKING
3455-00-232-9042INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10146
5331-00-252-6048INTERCHANGEABLE
O-RING
MS29513-006
5305-00-282-3230INTERCHANGEABLE
SCREW,MACHINE
2825-00-309-1654INTERCHANGEABLE
BLADING SET,TURBINE
1503103
5330-00-366-6424INTERCHANGEABLE
GASKET
2920-00-377-5253INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
2825-00-389-9778INTERCHANGEABLE
LEVER,GOVERNOR
26231
5360-00-430-8574INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3455-00-517-5555INTERCHANGEABLE
CUTTER,MILLING,SIDE
17446
4310-00-518-3586INTERCHANGEABLE
BLADE
62309

Frequently Asked Questions

What is NSN 5331-01-097-8242?

NSN 5331-01-097-8242 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-097-8242?

NSN 5331-01-097-8242 has 31 cross-referenced part numbers: 871231 (Zf Industrieantriebe Witten Gmbh), 256348PC31 (Huntington Ingalls Inc Div Newport News Shipbuilding), SAE-AS83461/1 (Sae International Dba Sae International), B39823172 (Zf Industrieantriebe Witten Gmbh), 2-2231 (Zf Industrieantriebe Witten Gmbh) and 26 more.

What NSN replaces 5331-01-097-8242?

There are 12 known substitutes for 5331-01-097-8242: 6680-00-027-2972, 5330-00-152-3140, 3455-00-232-9042 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-1385721-8-4?

Key specifications for 803-1385721-8-4: Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 125 MAXIMUM; Material: RUBBER SYNTHETIC; Center Hole Diameter: 2.589 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-097-8242 still in active supply?

NSN 5331-01-097-8242 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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