The O-Ring, cataloged under National Stock Number 5331-01-355-2599, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Omnithruster Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Omnithruster Inc. (CAGE 63183) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-355-2599 |
| Primary Part Number | 2288-AD2-10500 ITEM 9 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Omnithruster Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2288-AD2-10500 ITEM 9 PRIMARY | Omnithruster Inc. (USA) |
| Reference | Meaning |
|---|---|
| MSD-3891 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems |
| 9370RUPHL5 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems |
NSN 5331-01-355-2599 is a O-Ring, manufactured by Omnithruster Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-355-2599 has 1 manufacturer part number on file: 2288-AD2-10500 ITEM 9 (Omnithruster Inc.).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.