The O-Ring, cataloged under National Stock Number 5331-00-221-6178, 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 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-221-6178 |
| Primary Part Number | MS9385-03 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Outside Diameter | 0.429 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.061 INCHES MINIMUM AND 0.067 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 |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| S8990-579 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| MS9385-03 PRIMARY | Sae International Dba Sae International (USA) |
| MS9385-03 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS9385-03ES | Eriks B.v. (NLD) |
| MS9385-03 | Society of Automotive Engineers Inc (USA) |
| Z00.N7423061103 | Daher Aerospace - Ex Socata (FRA) |
| 5331PL0654965 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| SAE-AS9385 | Sae International Dba Sae International (USA) |
NSN 5331-00-221-6178 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-221-6178 has 8 cross-referenced part numbers: S8990-579 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), MS9385-03 (Sae International Dba Sae International), MS9385-03 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS9385-03ES (Eriks B.v.), MS9385-03 (Society of Automotive Engineers Inc) and 3 more.
There are 12 known substitutes for 5331-00-221-6178: 5331-00-123-2829, 5331-00-132-6971, 5331-00-163-6624 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS9385-03: Outside Diameter: 0.429 INCHES NOMINAL IN; Cross-Sectional Height: 0.061 INCHES MINIMUM AND 0.067 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.
NSN 5331-00-221-6178 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.