PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29512-12O-Ring

Sae International Dba Sae International · NSN 5331-00-263-8033 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-263-8033 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-263-8033. Primary manufacturer part number: MS29512-12.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Center Hole Diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
  • 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 5331-00-263-8033, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 41 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-263-8033
Primary Part NumberMS29512-12
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Outside Diameter1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Center Hole Diameter0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
Cross-Sectional Height0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3455-00-239-548354-10091 INTERCHANGEABLE
Cutter,milling,involute Gear
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5945-01-010-2762NTS13783-86 INTERCHANGEABLE
Base,relay
Safran Electrical & Power Uk Limited
5331-01-057-3127AS568-912 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5962-01-076-7965932821-23 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5310-01-215-3814N17912 INTERCHANGEABLE
Washer,lock
Leslie Controls, Inc. Dba Leslie Controls Inc
6240-01-344-507450PAR20/SP/HAL 6PK/120V INTERCHANGEABLE
Lamp,incandescent
General Electric Company Dba Ge
6515-01-514-3654495.341 INTERCHANGEABLE
Mesh,spine Implant
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
4240-01-578-522917912 INTERCHANGEABLE
Gage,pressure,dial Indicating
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
912-7866 Parker Hannifin Corporation Div O-Ring Division (USA)
A991-047-4 Zf Industrieantriebe Witten Gmbh (DEU)
10117080 Nimikkeistokeskus Ncb Finland (FIN)
MS29512-12ES Eriks B.v. (NLD)
5331PL0804125 Jednolity Indeks Materialowy - Uniform Material Index (POL)
60-P-31-912 West American Rubber Co Extrude Products Div (USA)
3010290 Embraer Empresa Brasileira De Aeronautica Sa (BRA)
9091683 Us Army Aviation and Missile Command (USA)
B-912SR8019-65 Stillman Seal Corporation Div Stillman Seal Corperation (USA)
4HS675 Oshkosh Defense Llc (USA)
0740739 General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE)
912-C-69 Federal-Mogul Corp Government Sales Dept (USA)
6749216-12 Allison Transmission Inc Dba Allison Transmission, Inc (USA)
4HS675 Oshkosh Corp (USA)
AS Federal-Mogul Corp Government Sales Dept (USA)
MS29512-12 Leonardo Spa Helicopters Division - Production Site (ITA)
F59C1005-5 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
725-70-912 Trostel Albert Packing Ltd (USA)
SAE-AS29512 Sae International Dba Sae International (USA)
912-C-69 Federal-Mogul Corp Chassis Products Div (USA)
Related Parts
3455-00-239-5483INTERCHANGEABLE
CUTTER,MILLING,INVOLUTE GEAR
54-10091
5945-01-010-2762INTERCHANGEABLE
BASE,RELAY
NTS13783-86
5331-01-057-3127INTERCHANGEABLE
O-RING
AS568-912
5962-01-076-7965INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932821-23
5310-01-215-3814INTERCHANGEABLE
WASHER,LOCK
N17912
6240-01-344-5074INTERCHANGEABLE
LAMP,INCANDESCENT
50PAR20/SP/HAL 6PK/120V
6515-01-514-3654INTERCHANGEABLE
MESH,SPINE IMPLANT
495.341
4240-01-578-5229INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
17912

Frequently Asked Questions

What is NSN 5331-00-263-8033?

NSN 5331-00-263-8033 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 5331-00-263-8033?

NSN 5331-00-263-8033 has 50 cross-referenced part numbers: 912-7866 (Parker Hannifin Corporation Div O-Ring Division), A991-047-4 (Zf Industrieantriebe Witten Gmbh), 10117080 (Nimikkeistokeskus Ncb Finland), MS29512-12ES (Eriks B.v.), 5331PL0804125 (Jednolity Indeks Materialowy - Uniform Material Index) and 45 more.

What NSN replaces 5331-00-263-8033?

There are 8 known substitutes for 5331-00-263-8033: 3455-00-239-5483, 5945-01-010-2762, 5331-01-057-3127 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29512-12?

Key specifications for MS29512-12: Outside Diameter: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; End Item Identification: W/S: DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP); SUPPORT EQUIPMENT, B-1 AIRCRAFT; ARMORED SECURITY VEHICLE, MODEL XM1117; AIRCRAFT, AIRLIFTER C-17A; ENGINE, AIRCRAFT, TF-33-P-7 (C-141A/B); AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); ENGINE, AIRCRAFT TF33-P-3/59 (C/EC-135, B-52H); ENGINE, AIRCRAFT, T56-A-7/15 (C-130B/E/H/N/P); AIRCRAFT, C-2A (REPROCURED); TORPEDO SYSTEMS, MK 50;HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE A; Center Hole Diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-263-8033 still in active supply?

NSN 5331-00-263-8033 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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