PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29513-239O-Ring

Cosmodyne, Llc Dba Cosmodyne Llc · NSN 5331-00-827-6915 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-827-6915 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-827-6915. Primary manufacturer part number: MS29513-239.
Features
  • O-Ring — FSC 5331
  • Outside Diameter: 3.887 INCHES NOMINAL IN
  • Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
  • Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • Elongation Percentage: 200 MAXIMUM
  • Center Hole Diameter: 3.594 INCHES MINIMUM AND 3.624 INCHES MAXIMUM IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Criticality Code Justification: ZZZW
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 5331-00-827-6915, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 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
NSN5331-00-827-6915
Primary Part NumberMS29513-239
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCosmodyne, Llc Dba Cosmodyne Llc
StatusACTIVE
Outside Diameter3.887 INCHES NOMINAL IN
Hardness Rating60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM
Departure From Cited DocumentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Elongation Percentage200 MAXIMUM
Center Hole Diameter3.594 INCHES MINIMUM AND 3.624 INCHES MAXIMUM IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Criticality Code JustificationZZZW
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-291-3076SAE-AS29513-239 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS29513-239 Cosmodyne, Llc Dba Cosmodyne Llc (USA)
MS29513-239CP Cosmodyne, Llc Dba Cosmodyne Llc (USA)
MS29513-239 Sae International Dba Sae International (USA)
MS29513-239CP Naval Inventory Control Point Mechanicsburg (USA)
MS29513-239 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILP5315 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS29513-239 Society of Automotive Engineers Inc (USA)
MS29513-239CP Sae International Dba Sae International (USA)
Related Parts
5331-00-291-3076INTERCHANGEABLE
O-RING
SAE-AS29513-239

Frequently Asked Questions

What is NSN 5331-00-827-6915?

NSN 5331-00-827-6915 is a O-Ring, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-827-6915?

NSN 5331-00-827-6915 has 8 cross-referenced part numbers: MS29513-239 (Cosmodyne, Llc Dba Cosmodyne Llc), MS29513-239CP (Cosmodyne, Llc Dba Cosmodyne Llc), MS29513-239 (Sae International Dba Sae International), MS29513-239CP (Naval Inventory Control Point Mechanicsburg), MS29513-239 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5331-00-827-6915?

There is 1 known substitute for 5331-00-827-6915: 5331-00-291-3076. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29513-239?

Key specifications for MS29513-239: Outside Diameter: 3.887 INCHES NOMINAL IN; Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Elongation Percentage: 200 MAXIMUM. 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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