The O-Ring, cataloged under National Stock Number 5331-01-019-4599, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Fluid Mechanics Valve Company. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-019-4599 |
| Primary Part Number | 2-1198-50-38 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Fluid Mechanics Valve Company |
| Status | ACTIVE |
| Cross-Sectional Height | 0.062 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| 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 |
|---|---|
| 2-1198-50-38 PRIMARY | Fluid Mechanics Valve Company (USA) |
| Reference | Meaning |
|---|---|
| 2-1198-50-38 | 5/9 Secondary reference Trw Inc Trw Mission Drillling Products Div |
NSN 5331-01-019-4599 is a O-Ring, manufactured by Fluid Mechanics Valve Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-019-4599 has 1 manufacturer part number on file: 2-1198-50-38 (Fluid Mechanics Valve Company).
Key specifications for 2-1198-50-38: Cross-Sectional Height: 0.062 INCHES NOMINAL IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE. 2 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.