The O-Ring, cataloged under National Stock Number 5331-01-377-0666, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Palfinger Marine Usa, Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Freudenberg Technical Products (CAGE K0640); Palfinger Marine Usa, Llc (CAGE 63504) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-377-0666 |
| Primary Part Number | D406757 NO 16 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Palfinger Marine Usa, Llc |
| 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 |
|---|---|
| UM14512018 | Freudenberg Technical Products (GBR) |
| D406757 NO 16 PRIMARY | Palfinger Marine Usa, Llc (USA) |
| Reference | Meaning |
|---|---|
| 406757 16 | C/1 Advisory reference — outside the item-of-supply concept Palfinger Marine Usa, Llc |
| 406757 NO 16 | 5/9 Secondary reference U.S. Government activity |
| UM14512018 | 5/9 Secondary reference Gaco Western Inc |
NSN 5331-01-377-0666 is a O-Ring, manufactured by Palfinger Marine Usa, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-377-0666 has 2 manufacturer part numbers on file: UM14512018 (Freudenberg Technical Products), D406757 NO 16 (Palfinger Marine Usa, Llc).
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.