The O-Ring, cataloged under National Stock Number 5331-01-692-9890, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pressure Systems, Inc. Dba Psi. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-692-9890 |
| Primary Part Number | FST-20-20-3-SS |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pressure Systems, Inc. Dba Psi |
| Status | ACTIVE |
| Center Hole Diameter | 1.250 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 |
|---|---|
| S10610-3000 FN 4 | Supreme Integrated Technology, Inc. (USA) |
| FST-20-20-3-SS PRIMARY | Pressure Systems, Inc. Dba Psi (USA) |
NSN 5331-01-692-9890 is a O-Ring, manufactured by Pressure Systems, Inc. Dba Psi, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-692-9890 has 2 manufacturer part numbers on file: S10610-3000 FN 4 (Supreme Integrated Technology, Inc.), FST-20-20-3-SS (Pressure Systems, Inc. Dba Psi).
Key specifications for FST-20-20-3-SS: Center Hole Diameter: 1.250 INCHES NOMINAL IN. 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.