PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS29513-344O-Ring

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-01-347-4323 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-347-4323 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-347-4323. Primary manufacturer part number: MS29513-344.
Features
  • O-Ring — FSC 5331
  • Peripheral Diameter: 4.270 INCHES NOMINAL IN
  • Elongation Percentage: 200 MAXIMUM
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
  • Center Hole Diameter: 3.835 INCHES MINIMUM AND 3.865 INCHES MAXIMUM IN
  • 1 verified cross-reference
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-347-4323, 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 6 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
NSN5331-01-347-4323
Primary Part NumberMS29513-344
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Peripheral Diameter4.270 INCHES NOMINAL IN
Elongation Percentage200 MAXIMUM
Criticality Code JustificationZZZW
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Cross-Sectional Height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
Center Hole Diameter3.835 INCHES MINIMUM AND 3.865 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-00-390-7910MS29513-344 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS29513-344 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5331-00-390-7910INTERCHANGEABLE
O-RING
MS29513-344

Frequently Asked Questions

What is NSN 5331-01-347-4323?

NSN 5331-01-347-4323 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 5331-01-347-4323?

NSN 5331-01-347-4323 has 1 cross-referenced part number: MS29513-344 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5331-01-347-4323?

There is 1 known substitute for 5331-01-347-4323: 5331-00-390-7910. Verify interchangeability with system specifications before substitution.

What are the specifications of MS29513-344?

Key specifications for MS29513-344: Peripheral Diameter: 4.270 INCHES NOMINAL IN; Elongation Percentage: 200 MAXIMUM; Criticality Code Justification: ZZZW; Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 7 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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