PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29512-02O-Ring

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-217-8249 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-217-8249 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-217-8249. Primary manufacturer part number: MS29512-02.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
  • Criticality Code Justification: ZZZW
  • Temp Rating: -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Cross-Sectional Height: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
  • Peripheral Diameter: 0.367 INCHES NOMINAL IN
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
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 5331-01-217-8249, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-217-8249
Primary Part NumberMS29512-02
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Hardness Rating60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
Criticality Code JustificationZZZW
Temp Rating-65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Cross-Sectional Height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Peripheral Diameter0.367 INCHES NOMINAL IN
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Center Hole Diameter0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
Material Document and ClassificationMIL-P-5315 MIL SPEC SINGLE MATERIAL RESPONSE
Elongation Percentage200 MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-135-8622MS29512-02 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS29512-02 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5331-00-135-8622INTERCHANGEABLE
O-RING
MS29512-02

Frequently Asked Questions

What is NSN 5331-01-217-8249?

NSN 5331-01-217-8249 is a O-Ring, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-217-8249?

NSN 5331-01-217-8249 has 1 cross-referenced part number: MS29512-02 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5331-01-217-8249?

There is 1 known substitute for 5331-01-217-8249: 5331-00-135-8622. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29512-02?

Key specifications for MS29512-02: Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM; Criticality Code Justification: ZZZW; Special Features: HAS RAISED LIP ON O.D. 0.010 IN. BY 0.005 IN. 180 DEG FROM O.D. LIP IS I.D. RAISED LIP 0.010 IN. BY 0.005 IN.CENTERED IN; Temp Rating: -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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