The O-Ring, cataloged under National Stock Number 5331-01-440-7705, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Zidell Valve Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Zidell Valve Corp (CAGE 51949) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-440-7705 |
| Primary Part Number | 4211-1/2IN-PACKING |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Zidell Valve Corp |
| 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 |
|---|---|
| 4211-1/2IN-PACKING PRIMARY | Zidell Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| FIG NO. 4211 ITEM NO. 15 | 5/9 Secondary reference Zidell Valve Corp |
NSN 5331-01-440-7705 is a O-Ring, manufactured by Zidell Valve Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-440-7705 has 1 manufacturer part number on file: 4211-1/2IN-PACKING (Zidell Valve Corp).
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.