The O-Ring, cataloged under National Stock Number 5331-01-565-2970, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Alfa Laval Inc. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Alfa Laval Inc (CAGE 71871); Alfa Laval Spa (CAGE A0147); Fincantieri S.p.a. Div Direzione Navi Militari (CAGE A3121) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-565-2970 |
| Primary Part Number | 1761482 06 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Alfa Laval Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1766965 84 POS 26 | Alfa Laval Inc (USA) |
| 1761482 06 PRIMARY | Alfa Laval Inc (USA) |
| 1761482 06 | Alfa Laval Spa (ITA) |
| 1761482 06 | Fincantieri S.p.a. Div Direzione Navi Militari (ITA) |
| Reference | Meaning |
|---|---|
| M1538-345137 | 6/9 Informative reference only Forsvarets Materielverk |
NSN 5331-01-565-2970 is a O-Ring, manufactured by Alfa Laval Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-565-2970 has 4 manufacturer part numbers on file: 1766965 84 POS 26 (Alfa Laval Inc), 1761482 06 (Alfa Laval Inc), 1761482 06 (Alfa Laval Spa), 1761482 06 (Fincantieri S.p.a. Div Direzione Navi Militari).
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.