The O-Ring, cataloged under National Stock Number 5331-01-137-6888, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cp Industries Holdings, Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | United States Steel Corporation (CAGE 61497); Cp Industries Holdings, Inc (CAGE 48899) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-137-6888 |
| Primary Part Number | 2MP3801-4 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cp Industries Holdings, 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 |
|---|---|
| 2MP3801-4 | United States Steel Corporation (USA) |
| 2MP3801-4 PRIMARY | Cp Industries Holdings, Inc (USA) |
| Reference | Meaning |
|---|---|
| 2MP3801-4DWG N0.4X14741Y ITEM 6 | 5/9 Secondary reference United States Steel Corporation |
| 2MP3801-4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-137-6888 is a O-Ring, manufactured by Cp Industries Holdings, Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-137-6888 has 2 manufacturer part numbers on file: 2MP3801-4 (United States Steel Corporation), 2MP3801-4 (Cp Industries Holdings, 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.