The O-Ring, cataloged under National Stock Number 5331-01-013-3725, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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 | 5331-01-013-3725 |
| Primary Part Number | 2-236C557-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Temp Rating | -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Outside Diameter | 3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Center Hole Diameter | 3.219 INCHES MINIMUM AND 3.239 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-236C557-70 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 18255PC3 | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 4236-53 | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 300-631P12 | Zf Industrieantriebe Witten Gmbh (DEU) |
| AS568-236 NEOPR ENE-1 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 364-48756-000 ITEM 94 | Johnson Controls Navy Systems, Llc (USA) |
| 028-11189-000 | Johnson Controls Navy Systems, Llc (USA) |
NSN 5331-01-013-3725 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-013-3725 has 7 cross-referenced part numbers: 2-236C557-70 (Parker-Hannifin Corp Div O-Ring Division), 18255PC3 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 4236-53 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 300-631P12 (Zf Industrieantriebe Witten Gmbh), AS568-236 NEOPR ENE-1 (Zf Industrieantriebe Witten Gmbh) and 2 more.
There are 2 known substitutes for 5331-01-013-3725: 3020-00-287-5707, 5331-01-059-1659. Verify interchangeability with system specifications before substitution.
Key specifications for 2-236C557-70: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Temp Rating: -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Outside Diameter: 3.480 INCHES MINIMUM AND 3.544 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL. 6 total characteristics are documented in the Federal Logistics Information System.