The O-Ring, cataloged under National Stock Number 5331-01-628-7941, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Seco Manufacturing Co, Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-628-7941 |
| Primary Part Number | 5/8-O-RING |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Seco Manufacturing Co, Inc |
| Status | ACTIVE |
| Center Hole Diameter | 0.625 INCHES NOMINAL IN |
| 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 |
|---|---|
| 5/8-O-RING PRIMARY | Seco Manufacturing Co, Inc (USA) |
NSN 5331-01-628-7941 is a O-Ring, manufactured by Seco Manufacturing Co, Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-628-7941 has 1 manufacturer part number on file: 5/8-O-RING (Seco Manufacturing Co, Inc).
Key specifications for 5/8-O-RING: Center Hole Diameter: 0.625 INCHES NOMINAL IN; End Item Identification: 016200269. 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.