The O-Ring, cataloged under National Stock Number 5331-00-865-0404, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 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 | 5331-00-865-0404 |
| Primary Part Number | 2-278N951-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | CANCELLED |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Outside Diameter | 12.189 INCHES MINIMUM AND 12.335 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Temp Rating | -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 1.234 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 154022 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 6F6673 | Holt Bros (USA) |
| 6F-6673 | Pon Equipment B.v. (NLD) |
| 145904 | Komatsu American Intl Co (USA) |
| C-154022 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 315247 | Yale Security Inc. Dba Norton Door Control (USA) |
| 2-278N951-75 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 6F6673 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 10322237 | Nimikkeistokeskus Ncb Finland (FIN) |
| 154022 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 54772 | Hyster-Yale Group, Inc. (USA) |
| 55434 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
NSN 5331-00-865-0404 is a O-Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-865-0404 has 12 cross-referenced part numbers: 154022 (Eaton Aerospace, Llc Dba Jackson South), 6F6673 (Holt Bros), 6F-6673 (Pon Equipment B.v.), 145904 (Komatsu American Intl Co), C-154022 (Zf Industrieantriebe Witten Gmbh) and 7 more.
There are 12 known substitutes for 5331-00-865-0404: 5960-00-179-3710, 5330-00-196-5385, 5331-00-198-6183 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-278N951-75: Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Outside Diameter: 12.189 INCHES MINIMUM AND 12.335 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Temp Rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-865-0404 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.