The O-Ring, cataloged under National Stock Number 5331-00-579-3161, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-579-3161 |
| Primary Part Number | MS28775-346 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Center Hole Diameter | 4.085 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN |
| Outside Diameter | 4.482 INCHES MINIMUM AND 4.558 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AD571-24Y99FN6 | Pall Corp Div Pall Corporation (USA) |
| A-346SR837-75 | Stillman Seal Corporation Div Stillman Seal Corperation (USA) |
| PRP346-7377 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 5331PL0657034 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| 6227-49 | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo (USA) |
| MS28775-346 | Age Logistics Corporation (USA) |
| MS28775-346 | Society of Automotive Engineers Inc (USA) |
| MS28775-346 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS28775-346 PRIMARY | Sae International Dba Sae International (USA) |
| 2-346 N304-75 | Parker Hannifin Gmbh O-Ring Division (DEU) |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| 2-346 N304-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| MS28775-346 | Bendix Corp the Bendix International Div (USA) |
| 230079211 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| 346-7377 | Parker Hannifin Corporation Div O-Ring Division (USA) |
NSN 5331-00-579-3161 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-579-3161 has 15 cross-referenced part numbers: AD571-24Y99FN6 (Pall Corp Div Pall Corporation), A-346SR837-75 (Stillman Seal Corporation Div Stillman Seal Corperation), PRP346-7377 (Parker Hannifin Corporation Div O-Ring Division), 5331PL0657034 (Jednolity Indeks Materialowy - Uniform Material Index), 6227-49 (Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo) and 10 more.
There are 3 known substitutes for 5331-00-579-3161: 5995-00-676-2708, 5331-00-843-8407, 5331-01-160-4327. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-346: Center Hole Diameter: 4.085 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN; Outside Diameter: 4.482 INCHES MINIMUM AND 4.558 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL. 5 total characteristics are documented in the Federal Logistics Information System.