The O-Ring, cataloged under National Stock Number 5331-01-357-0844, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Itt Marlow a Unit of Itt Pumps and Compressors Div. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Itt Marlow a Unit of Itt Pumps and Compressors Div (CAGE 38455) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-357-0844 |
| Primary Part Number | 4044400 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Itt Marlow a Unit of Itt Pumps and Compressors Div |
| 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 |
|---|---|
| 4044400 | Itt Marlow a Unit of Itt Pumps and Compressors Div (USA) |
| Reference | Meaning |
|---|---|
| 4044400 | 3/9 Design control — primary reference Power Pump Inc |
NSN 5331-01-357-0844 is a O-Ring, manufactured by Itt Marlow a Unit of Itt Pumps and Compressors Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-357-0844 has 1 manufacturer part number on file: 4044400 (Itt Marlow a Unit of Itt Pumps and Compressors Div).
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.