The O-Ring, cataloged under National Stock Number 5331-01-212-0120, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is The Walworth Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-212-0120 |
| Primary Part Number | 2620-902X4 PIECE 6 1/2IN |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| 2620-902X4 PIECE 6 1/2IN PRIMARY | The Walworth Company (USA) |
| Reference | Meaning |
|---|---|
| 2620-902X4 PIECE 6 1/2IN | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-212-0120 is a O-Ring, manufactured by The Walworth Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-212-0120 has 1 manufacturer part number on file: 2620-902X4 PIECE 6 1/2IN (The Walworth Company).
Key specifications for 2620-902X4 PIECE 6 1/2IN: Material: RUBBER SILICONE CLASS Q. 1 specification is documented in the U.S. Government catalog.
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.