The O-Ring, cataloged under National Stock Number 5331-01-353-1911, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Rdo Equipment Rdo Equipment Pty Ltd. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Rdo Equipment Rdo Equipment Pty Ltd (CAGE ZB955); Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery (CAGE Z0944) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-353-1911 |
| Primary Part Number | F37020159 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Rdo Equipment Rdo Equipment Pty 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 |
|---|---|
| F37020159 | Rdo Equipment Rdo Equipment Pty Ltd (AUS) |
| F37020159 | Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery (AUS) |
| Reference | Meaning |
|---|---|
| F37020159 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-353-1911 is a O-Ring, manufactured by Rdo Equipment Rdo Equipment Pty Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-353-1911 has 2 manufacturer part numbers on file: F37020159 (Rdo Equipment Rdo Equipment Pty Ltd), F37020159 (Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery).
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.