The O-Ring, cataloged under National Stock Number 5331-01-453-3341, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is John Iacono Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | John Iacono Inc (CAGE 042K7) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-453-3341 |
| Primary Part Number | 0663 2101 71 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | John Iacono Inc |
| 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 |
|---|---|
| 0663 2101 71 PRIMARY | John Iacono Inc (USA) |
| Reference | Meaning |
|---|---|
| 0663 2101 71 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-453-3341 is a O-Ring, manufactured by John Iacono Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-453-3341 has 1 manufacturer part number on file: 0663 2101 71 (John Iacono Inc).
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.