The O-Ring, cataloged under National Stock Number 5331-01-470-3252, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is W S Darley & Co. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | W S Darley & Co (CAGE 15852); Yanmar Mastry Engine Center, Llc Dba Mastry Engine Center (CAGE 040W0); Yanmar Co. Ltd. (CAGE J4450) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-470-3252 |
| Primary Part Number | 3601019 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | W S Darley & Co |
| 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 |
|---|---|
| 3601019 PRIMARY | W S Darley & Co (USA) |
| 3601016 | Yanmar Mastry Engine Center, Llc Dba Mastry Engine Center (USA) |
| 3601016 | Yanmar Co. Ltd. (JPN) |
| Reference | Meaning |
|---|---|
| 3601016 | 5/9 Secondary reference Yanmar Diesel America Corp |
| 3601016 | 5/9 Secondary reference Yanmar Co. Ltd. |
| 3601016 | C/1 Advisory reference — outside the item-of-supply concept Yanmar America Corporation |
NSN 5331-01-470-3252 is a O-Ring, manufactured by W S Darley & Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-470-3252 has 3 manufacturer part numbers on file: 3601019 (W S Darley & Co), 3601016 (Yanmar Mastry Engine Center, Llc Dba Mastry Engine Center), 3601016 (Yanmar Co. Ltd.).
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.