The O-Ring, cataloged under National Stock Number 5331-00-121-6909, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Man Diesel & Turbo Ltd. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Curtis Engine & Equipment Company, Inc. Dba Curtis Engine & Equipment (CAGE 26295); Man Diesel & Turbo Ltd (CAGE K8098); Everllence Usa Inc. (CAGE 5P630) |
| Parameter | Value |
|---|---|
| NSN | 5331-00-121-6909 |
| Primary Part Number | 036712 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Man Diesel & Turbo Ltd |
| 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 |
|---|---|
| 036712 | Curtis Engine & Equipment Company, Inc. Dba Curtis Engine & Equipment (USA) |
| 036712 PRIMARY | Man Diesel & Turbo Ltd (GBR) |
| ST036712 PRIMARY | Everllence Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 036712 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-121-6909 is a O-Ring, manufactured by Man Diesel & Turbo Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-121-6909 has 3 manufacturer part numbers on file: 036712 (Curtis Engine & Equipment Company, Inc. Dba Curtis Engine & Equipment), 036712 (Man Diesel & Turbo Ltd), ST036712 (Everllence Usa 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.