PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29512-20O-Ring

Sae International Dba Sae International · NSN 5331-00-263-8035 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-263-8035 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-263-8035. Primary manufacturer part number: MS29512-20.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
  • Outside Diameter: 1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
  • Center Hole Diameter: 1.465 INCHES MINIMUM AND 1.485 INCHES MAXIMUM IN
  • 29 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 5331-00-263-8035, 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 29 commercial cross-references from 24 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-263-8035
Primary Part NumberMS29512-20
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN
Outside Diameter1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN
Center Hole Diameter1.465 INCHES MINIMUM AND 1.485 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
3110-00-100-0222 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5960-00-261-8680 INTERCHANGEABLE
Electron Tube
5306-00-360-6880C140-2 INTERCHANGEABLE
Bolt,internally Relieved Body
Zenith Fuel Systems Llc
5950-00-646-1900N216266-8 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon Co
3030-00-882-572324400-3 INTERCHANGEABLE
Belts,v,matched Set
Carlisle Power Transmission Products Inc
5660-01-038-5540 INTERCHANGEABLE
Arm Extension,fencing
5895-01-244-9610 INTERCHANGEABLE
Decoder Subassembly
6350-01-399-1351 INTERCHANGEABLE
Pir Curtain Lens
4730-01-480-2973607 3 INTERCHANGEABLE
Elbow,tube
Nibco Inc
6685-01-571-6266607-3 INTERCHANGEABLE
Transmitter,pressure
Dwyer Instruments Inc
Cross-Reference Index
Part NumberManufacturer
3-920 N602-70 Parker Hannifin Gmbh O-Ring Division (DEU)
S8316AD20 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
TR253-65-920 Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA)
10163240 Nimikkeistokeskus Ncb Finland (FIN)
MS29512-20 Leonardo Spa Helicopters Division - Production Site (ITA)
7866-920 Parker Hannifin Corporation Div O-Ring Division (USA)
1793-920 Parker-Hannifin Corporation Div O-Ring Division (USA)
GHN10094-12 Lockheed Martin Corp (USA)
60-P-31-920 West American Rubber Co Extrude Products Div (USA)
B-20SR822-60 Stillman Seal Corporation Div Stillman Seal Corperation (USA)
MS29512-20 Dbr Industries, Inc. Dba Dbr Industries Inc (USA)
MS29512-20 Society of Automotive Engineers Inc (USA)
6749216-20 General Motors Corp (USA)
PRP920-7866 Parker Hannifin Corporation Div O-Ring Division (USA)
6749216-20 Allison Transmission Inc Dba Allison Transmission, Inc (USA)
920-7866 Parker Hannifin Corporation Div O-Ring Division (USA)
MS29512-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS29512-20ES Eriks B.v. (NLD)
MS29512-20 PRIMARY Sae International Dba Sae International (USA)
3-920N602-70 Parker-Hannifin Corp Div O-Ring Division (USA)
Related Parts
3110-00-100-0222INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5960-00-261-8680INTERCHANGEABLE
ELECTRON TUBE
5306-00-360-6880INTERCHANGEABLE
BOLT,INTERNALLY RELIEVED BODY
C140-2
5950-00-646-1900INTERCHANGEABLE
COIL,RADIO FREQUENCY
N216266-8
3030-00-882-5723INTERCHANGEABLE
BELTS,V,MATCHED SET
24400-3
5660-01-038-5540INTERCHANGEABLE
ARM EXTENSION,FENCING
5895-01-244-9610INTERCHANGEABLE
DECODER SUBASSEMBLY
6350-01-399-1351INTERCHANGEABLE
PIR CURTAIN LENS
4730-01-480-2973INTERCHANGEABLE
ELBOW,TUBE
607 3
6685-01-571-6266INTERCHANGEABLE
TRANSMITTER,PRESSURE
607-3
5120-01-645-3438INTERCHANGEABLE
SCREWDRIVER,FLAT TIP

Frequently Asked Questions

What is NSN 5331-00-263-8035?

NSN 5331-00-263-8035 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 5331-00-263-8035?

NSN 5331-00-263-8035 has 29 cross-referenced part numbers: 3-920 N602-70 (Parker Hannifin Gmbh O-Ring Division), S8316AD20 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), TR253-65-920 (Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp), 10163240 (Nimikkeistokeskus Ncb Finland), MS29512-20 (Leonardo Spa Helicopters Division - Production Site) and 24 more.

What NSN replaces 5331-00-263-8035?

There are 11 known substitutes for 5331-00-263-8035: 3110-00-100-0222, 5960-00-261-8680, 5306-00-360-6880 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29512-20?

Key specifications for MS29512-20: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.114 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN; Outside Diameter: 1.689 INCHES MINIMUM AND 1.733 INCHES MAXIMUM IN; Center Hole Diameter: 1.465 INCHES MINIMUM AND 1.485 INCHES MAXIMUM IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-263-8035 still in active supply?

NSN 5331-00-263-8035 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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