PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS9388-135O-Ring

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-00-182-3687 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-182-3687 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-182-3687. Primary manufacturer part number: MS9388-135.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
  • Center Hole Diameter: 1.915 INCHES MINIMUM AND 1.935 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • 4 verified cross-references
  • Primary manufacturer: Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-182-3687, 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 3 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
NSN5331-00-182-3687
Primary Part NumberMS9388-135
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Cross-Sectional Height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
Center Hole Diameter1.915 INCHES MINIMUM AND 1.935 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5331-01-005-0508AS3209-135 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS9388-135 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
SAE AS3209-135 Society of Automotive Engineers Inc (USA)
MS9388-135ES Eriks B.v. (NLD)
SAE AS3209-135 Sae International Dba Sae International (USA)
Related Parts
5331-01-005-0508INTERCHANGEABLE
O-RING
AS3209-135

Frequently Asked Questions

What is NSN 5331-00-182-3687?

NSN 5331-00-182-3687 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 5331-00-182-3687?

NSN 5331-00-182-3687 has 4 cross-referenced part numbers: MS9388-135 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), SAE AS3209-135 (Society of Automotive Engineers Inc), MS9388-135ES (Eriks B.v.), SAE AS3209-135 (Sae International Dba Sae International).

What NSN replaces 5331-00-182-3687?

There is 1 known substitute for 5331-00-182-3687: 5331-01-005-0508. Verify interchangeability with system specifications before substitution.

What are the specifications of MS9388-135?

Key specifications for MS9388-135: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 1.915 INCHES MINIMUM AND 1.935 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 3 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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