PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS9388-115O-Ring

Le Joint Francais · NSN 5331-00-864-7185 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-864-7185 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-864-7185. Primary manufacturer part number: MS9388-115.
Features
  • O-Ring — FSC 5331
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Material Document and Classification: CLASS AMS-R-83248 FVM NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE
  • Cross-Sectional Height: 0.103 INCHES NOMINAL IN
  • Center Hole Diameter: 0.669 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: Le Joint Francais
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 5331-00-864-7185, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Le Joint Francais. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-864-7185
Primary Part NumberMS9388-115
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLe Joint Francais
StatusCANCELLED
MaterialRUBBER FLUOROCARBON CLASS FPM
Material Document and ClassificationCLASS AMS-R-83248 FVM NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE
Cross-Sectional Height0.103 INCHES NOMINAL IN
Center Hole Diameter0.669 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5331-00-166-1066M83248/1-115 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-01-113-7794 INTERCHANGEABLE
O-Ring
5331-01-253-0608 INTERCHANGEABLE
O-Ring
5331-01-463-8770M83248/1-115 INTERCHANGEABLE
Packing,preformed,a
Rolls Royce Corp
Cross-Reference Index
Part NumberManufacturer
MS9388-115 Le Joint Francais (FRA)
MS9388-115 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS9388-115ES Eriks B.v. (NLD)
MS9388-115 Aero Stock (FRA)
M83248-1-115 Le Joint Francais (FRA)
385960 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5331-00-166-1066INTERCHANGEABLE
O-RING
M83248/1-115
5331-01-113-7794INTERCHANGEABLE
O-RING
5331-01-253-0608INTERCHANGEABLE
O-RING
5331-01-463-8770INTERCHANGEABLE
PACKING,PREFORMED,A
M83248/1-115

Frequently Asked Questions

What is NSN 5331-00-864-7185?

NSN 5331-00-864-7185 is a O-Ring, manufactured by Le Joint Francais, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-864-7185?

NSN 5331-00-864-7185 has 6 cross-referenced part numbers: MS9388-115 (Le Joint Francais), MS9388-115 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS9388-115ES (Eriks B.v.), MS9388-115 (Aero Stock), M83248-1-115 (Le Joint Francais) and 1 more.

What NSN replaces 5331-00-864-7185?

There are 4 known substitutes for 5331-00-864-7185: 5331-00-166-1066, 5331-01-113-7794, 5331-01-253-0608 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS9388-115?

Key specifications for MS9388-115: Material: RUBBER FLUOROCARBON CLASS FPM; Material Document and Classification: CLASS AMS-R-83248 FVM NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE; Special Features: CHANGE FROM FSC 5330 TO 5331 PER H6; Cross-Sectional Height: 0.103 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-864-7185 still in active supply?

NSN 5331-00-864-7185 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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