PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29561-110O-Ring

Society of Automotive Engineers Inc · NSN 5331-00-788-3872 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-788-3872 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-788-3872. Primary manufacturer part number: MS29561-110.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Outside Diameter: 0.568 INCHES NOMINAL IN
  • Elongation Percentage: 250 MAXIMUM
  • Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
  • 8 verified cross-references
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 5331-00-788-3872, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 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
NSN5331-00-788-3872
Primary Part NumberMS29561-110
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Outside Diameter0.568 INCHES NOMINAL IN
Elongation Percentage250 MAXIMUM
Center Hole Diameter0.357 INCHES MINIMUM AND 0.367 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-119-9008 INTERCHANGEABLE
Angle,structural
5960-00-248-3083 INTERCHANGEABLE
Electron Tube
4730-00-251-7830128274 INTERCHANGEABLE
Fitting,lubrication
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-306-11186097 INTERCHANGEABLE
Packing Assy
Greene Tweed & Co Inc
5360-00-370-14256097 INTERCHANGEABLE
Spring
Telemechanics Inc
4440-00-622-6992GRP95-714 INTERCHANGEABLE
Float Assembly
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
1305-00-752-8114 INTERCHANGEABLE
Cartridge,20 Millimeter
5331-00-835-27655302-0800 INTERCHANGEABLE
O-Ring
Kidde-Fenwal, Llc
7510-00-995-48934893 INTERCHANGEABLE
Tape,embossing
Safina Office Products, Inc. Dba Safina Office Products Inc
4130-01-136-32196097 INTERCHANGEABLE
Filter Media,air Conditioning
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Cross-Reference Index
Part NumberManufacturer
MS29561-110 Society of Automotive Engineers Inc (USA)
C9-723-36-0004 Air Products & Chemicals, Inc (USA)
MS29561-110 Sae International Dba Sae International (USA)
5331PL0143901 Jednolity Indeks Materialowy - Uniform Material Index (POL)
C723-99-0004 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS29561-110 Air Products & Chemicals, Inc (USA)
C4-723-99-0004 Air Products & Chemicals, Inc (USA)
6097 Air Products & Chemicals, Inc (USA)
Related Parts
9540-00-119-9008INTERCHANGEABLE
ANGLE,STRUCTURAL
5960-00-248-3083INTERCHANGEABLE
ELECTRON TUBE
4730-00-251-7830INTERCHANGEABLE
FITTING,LUBRICATION
128274
5330-00-306-1118INTERCHANGEABLE
PACKING ASSY
6097
5360-00-370-1425INTERCHANGEABLE
SPRING
6097
4440-00-622-6992INTERCHANGEABLE
FLOAT ASSEMBLY
GRP95-714
1305-00-752-8114INTERCHANGEABLE
CARTRIDGE,20 MILLIMETER
5331-00-835-2765INTERCHANGEABLE
O-RING
5302-0800
7510-00-995-4893INTERCHANGEABLE
TAPE,EMBOSSING
4893
4130-01-136-3219INTERCHANGEABLE
FILTER MEDIA,AIR CONDITIONING
6097
5999-01-268-4616INTERCHANGEABLE
COMPONENT BOARD
6097
1310-01-552-5760INTERCHANGEABLE
CARTRIDGE,40 MILLIMETER,NON-LETH
6097

Frequently Asked Questions

What is NSN 5331-00-788-3872?

NSN 5331-00-788-3872 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-788-3872?

NSN 5331-00-788-3872 has 8 cross-referenced part numbers: MS29561-110 (Society of Automotive Engineers Inc), C9-723-36-0004 (Air Products & Chemicals, Inc), MS29561-110 (Sae International Dba Sae International), 5331PL0143901 (Jednolity Indeks Materialowy - Uniform Material Index), C723-99-0004 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5331-00-788-3872?

There are 12 known substitutes for 5331-00-788-3872: 9540-00-119-9008, 5960-00-248-3083, 4730-00-251-7830 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29561-110?

Key specifications for MS29561-110: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 0.568 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-788-3872 still in active supply?

NSN 5331-00-788-3872 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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