PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29512-06O-Ring

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-207-9385 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-207-9385 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-207-9385. Primary manufacturer part number: MS29512-06.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ADYT
  • Center Hole Diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
  • Temp Rating: -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Outside Diameter: 0.624 INCHES NOMINAL IN
  • Elongation Percentage: 200 MAXIMUM
  • Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
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 5331-01-207-9385, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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
NSN5331-01-207-9385
Primary Part NumberMS29512-06
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Criticality Code JustificationADYT
Center Hole Diameter0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN
Temp Rating-65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Outside Diameter0.624 INCHES NOMINAL IN
Elongation Percentage200 MAXIMUM
Cross-Sectional Height0.075 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
Hardness Rating65.0 SHORE DUROMETER A NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-263-8030MS29512-06 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS29512-06 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS29512-06 Sae International Dba Sae International (USA)
MIL-P-5315 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS29512-06 Society of Automotive Engineers Inc (USA)
Related Parts
5331-00-263-8030INTERCHANGEABLE
O-RING
MS29512-06

Frequently Asked Questions

What is NSN 5331-01-207-9385?

NSN 5331-01-207-9385 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 5331-01-207-9385?

NSN 5331-01-207-9385 has 4 cross-referenced part numbers: MS29512-06 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS29512-06 (Sae International Dba Sae International), MIL-P-5315 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS29512-06 (Society of Automotive Engineers Inc).

What NSN replaces 5331-01-207-9385?

There is 1 known substitute for 5331-01-207-9385: 5331-00-263-8030. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29512-06?

Key specifications for MS29512-06: Criticality Code Justification: ADYT; Center Hole Diameter: 0.463 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN; Temp Rating: -65.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 8 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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