PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS9386-042O-Ring

Sae International Dba Sae International · NSN 5331-00-127-7444 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-127-7444 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-127-7444. Primary manufacturer part number: MS9386-042.
Features
  • O-Ring — FSC 5331
  • Elongation Percentage: 125 MAXIMUM
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL
  • Material: RUBBER SILICONE CLASS Q
  • Temp Rating: -85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
  • Center Hole Diameter: 3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
  • Outside Diameter: 3.379 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Class Q construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-127-7444, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-127-7444
Primary Part NumberMS9386-042
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerSae International Dba Sae International
StatusCANCELLED
Elongation Percentage125 MAXIMUM
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
Hardness Rating75.0 SHORE DUROMETER A NOMINAL
MaterialRUBBER SILICONE CLASS Q
Temp Rating-85.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
Center Hole Diameter3.224 INCHES MINIMUM AND 3.254 INCHES MAXIMUM IN
Outside Diameter3.379 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5331-00-026-2578MS9386-227 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-111-7811 INTERCHANGEABLE
O-Ring
5331-00-274-7837MS9386-228 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5331-00-275-34722-437C1124-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-548-7909745056 INTERCHANGEABLE
O-Ring
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5331-01-234-6374MS9386-160 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
AMS7267 Society of Automotive Engineers Inc (USA)
AMS7267 Sae International Dba Sae International (USA)
MS9386-042 PRIMARY Sae International Dba Sae International (USA)
MS9386-042 Society of Automotive Engineers Inc (USA)
MS9386-042 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
SAE-AS9386 Sae International Dba Sae International (USA)
Related Parts
5331-00-026-2578INTERCHANGEABLE
O-RING
MS9386-227
5331-00-111-7811INTERCHANGEABLE
O-RING
5331-00-274-7837INTERCHANGEABLE
O-RING
MS9386-228
5331-00-275-3472INTERCHANGEABLE
O-RING
2-437C1124-70
5331-00-548-7909INTERCHANGEABLE
O-RING
745056
5331-01-234-6374INTERCHANGEABLE
O-RING
MS9386-160

Frequently Asked Questions

What is NSN 5331-00-127-7444?

NSN 5331-00-127-7444 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-127-7444?

NSN 5331-00-127-7444 has 6 cross-referenced part numbers: AMS7267 (Society of Automotive Engineers Inc), AMS7267 (Sae International Dba Sae International), MS9386-042 (Sae International Dba Sae International), MS9386-042 (Society of Automotive Engineers Inc), MS9386-042 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5331-00-127-7444?

There are 6 known substitutes for 5331-00-127-7444: 5331-00-026-2578, 5331-00-111-7811, 5331-00-274-7837 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS9386-042?

Key specifications for MS9386-042: Elongation Percentage: 125 MAXIMUM; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material: RUBBER SILICONE CLASS Q. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-127-7444 still in active supply?

NSN 5331-00-127-7444 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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