PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS28775-237O-Ring

Sae International Dba Sae International · NSN 5331-00-608-6432 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-608-6432 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-608-6432. Primary manufacturer part number: MS28775-237.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 3.605 INCHES MINIMUM AND 3.669 INCHES MAXIMUM IN
  • Center Hole Diameter: 3.344 INCHES MINIMUM AND 3.374 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 50 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
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 5331-00-608-6432, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 29 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
NSN5331-00-608-6432
Primary Part NumberMS28775-237
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Outside Diameter3.605 INCHES MINIMUM AND 3.669 INCHES MAXIMUM IN
Center Hole Diameter3.344 INCHES MINIMUM AND 3.374 INCHES MAXIMUM IN
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Material Document and ClassificationMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-006-829706689237142 INTERCHANGEABLE
O-Ring
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4320-00-038-0638897 INTERCHANGEABLE
Deflector,dirt and Liquid
Weil Pump Co Inc
5975-00-060-1875 INTERCHANGEABLE
Hanger,cable
6730-00-180-4457 INTERCHANGEABLE
Mirror,photographic Projector
6110-00-252-1731165-336-2 INTERCHANGEABLE
Regulator,voltage
Bi Technologies Corporation Div Bi Technologies Corp.
5940-00-264-9099 INTERCHANGEABLE
Splice,conductor
5962-00-348-2715 INTERCHANGEABLE
Microcircuit,digital
2820-00-388-1077897 INTERCHANGEABLE
Guide,e,haust Valve
Banner Industries Inc Skinner Engine Co Div
3020-00-393-5522 INTERCHANGEABLE
Gear,drive Motion
5330-00-399-4273200004 INTERCHANGEABLE
Gasket
The Oilgear Company Dba Jiffy Lube 213 Div Oilgear
Cross-Reference Index
Part NumberManufacturer
MS28775-237 Bae Systems Land & Armaments L.p. (USA)
2-237PS-1-30-5 Zf Industrieantriebe Witten Gmbh (DEU)
2-237 N304-75 Parker Hannifin Gmbh O-Ring Division (DEU)
2-237N304-75 Zf Industrieantriebe Witten Gmbh (DEU)
237-7377 Parker Hannifin Corporation Div O-Ring Division (USA)
AN6230815 Zf Industrieantriebe Witten Gmbh (DEU)
836242-4 Zf Industrieantriebe Witten Gmbh (DEU)
MS28775-237 Zf Industrieantriebe Witten Gmbh (DEU)
2-237 N304-75 Parker-Hannifin Corp Div O-Ring Division (USA)
PRP568-237-4067-70 Parco, Llc (USA)
10154075 Nimikkeistokeskus Ncb Finland (FIN)
MS28775-237 Society of Automotive Engineers Inc (USA)
SAE-AS28775 Sae International Dba Sae International (USA)
ARP568-237MILP2 5732 Zf Industrieantriebe Witten Gmbh (DEU)
6230-15 Control Flow, Inc. Dba Control Flow Inc (USA)
5331PL0809933 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS28775 Sae International Dba Sae International (USA)
927104 Rexnord Industries Llc (USA)
ARP568-237MILP5 516-70 Zf Industrieantriebe Witten Gmbh (DEU)
MIL-P-25732 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5331-00-006-8297INTERCHANGEABLE
O-RING
06689237142
4320-00-038-0638INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
897
5975-00-060-1875INTERCHANGEABLE
HANGER,CABLE
6730-00-180-4457INTERCHANGEABLE
MIRROR,PHOTOGRAPHIC PROJECTOR
6110-00-252-1731INTERCHANGEABLE
REGULATOR,VOLTAGE
165-336-2
5940-00-264-9099INTERCHANGEABLE
SPLICE,CONDUCTOR
5962-00-348-2715INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
2820-00-388-1077INTERCHANGEABLE
GUIDE,E,HAUST VALVE
897
3020-00-393-5522INTERCHANGEABLE
GEAR,DRIVE MOTION
5330-00-399-4273INTERCHANGEABLE
GASKET
200004
5950-00-434-3185INTERCHANGEABLE
SATURABLE REACTOR
912152
2590-00-436-3178INTERCHANGEABLE
HOSE RECEPTACLE

Frequently Asked Questions

What is NSN 5331-00-608-6432?

NSN 5331-00-608-6432 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-608-6432?

NSN 5331-00-608-6432 has 50 cross-referenced part numbers: MS28775-237 (Bae Systems Land & Armaments L.p.), 2-237PS-1-30-5 (Zf Industrieantriebe Witten Gmbh), 2-237 N304-75 (Parker Hannifin Gmbh O-Ring Division), 2-237N304-75 (Zf Industrieantriebe Witten Gmbh), 237-7377 (Parker Hannifin Corporation Div O-Ring Division) and 45 more.

What NSN replaces 5331-00-608-6432?

There are 12 known substitutes for 5331-00-608-6432: 5331-00-006-8297, 4320-00-038-0638, 5975-00-060-1875 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS28775-237?

Key specifications for MS28775-237: Outside Diameter: 3.605 INCHES MINIMUM AND 3.669 INCHES MAXIMUM IN; Center Hole Diameter: 3.344 INCHES MINIMUM AND 3.374 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-608-6432 still in active supply?

NSN 5331-00-608-6432 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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