The O-Ring, cataloged under National Stock Number 5331-01-072-9191, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-072-9191 |
| Primary Part Number | N306-75-2-226 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Center Hole Diameter | 1.974 INCHES MINIMUM AND 1.991 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| N306-75-2-226 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| MS28775-226 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS28775-226 | Tecno Trade S.r.l. (ITA) |
| MS28775-226 | Sae International Dba Sae International (USA) |
| MS28775-226 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-072-9191 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-072-9191 has 5 cross-referenced part numbers: N306-75-2-226 (Parker-Hannifin Corp Div O-Ring Division), MS28775-226 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS28775-226 (Tecno Trade S.r.l.), MS28775-226 (Sae International Dba Sae International), MS28775-226 (Society of Automotive Engineers Inc).
There are 2 known substitutes for 5331-01-072-9191: 5330-00-434-6225, 5331-00-576-9732. Verify interchangeability with system specifications before substitution.
Key specifications for N306-75-2-226: Center Hole Diameter: 1.974 INCHES MINIMUM AND 1.991 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.