The O-Ring, cataloged under National Stock Number 5331-01-535-2425, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Vsp Tech, Inc.. Government technical data includes 3 specifications, 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 | 5331-01-535-2425 |
| Primary Part Number | ORVI349 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Vsp Tech, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.188 INCHES NOMINAL IN |
| Center Hole Diameter | 4.500 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| ORVI349 PRIMARY | Vsp Tech, Inc. (USA) |
NSN 5331-01-535-2425 is a O-Ring, manufactured by Vsp Tech, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-535-2425 has 1 manufacturer part number on file: ORVI349 (Vsp Tech, Inc.).
Key specifications for ORVI349: Cross-Sectional Height: 0.188 INCHES NOMINAL IN; Special Features: OD IS 4.875 IN NOMINAL IN; Center Hole Diameter: 4.500 INCHES NOMINAL IN; End Item Identification: FAN VOLUTE SZ63.00 IN DIA IMPELLER CCW IN. 3 specifications are 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.