The Disk,rupturable, cataloged under National Stock Number 4820-01-370-4780, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oklahoma Safety Equipment Co Inc Dba Oseco Div Oklahoma Safety Equipment Co. (dba Oseco). Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-370-4780 |
| Primary Part Number | SK-0148 |
| Item Name | Disk,rupturable |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oklahoma Safety Equipment Co Inc Dba Oseco Div Oklahoma Safety Equipment Co. (dba Oseco) |
| Status | ACTIVE |
| Disk Material | NICKEL ALLOY |
| Burst Pressure | 4000.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| Burst Temperature | 240.0 FAHRENHEIT DEGF |
| Disk Size | 0.750 INCHES 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 |
|---|---|
| 334251P01 | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| SK-0148 PRIMARY | Oklahoma Safety Equipment Co Inc Dba Oseco Div Oklahoma Safety Equipment Co. (dba Oseco) (USA) |
| Reference | Meaning |
|---|---|
| 334251P01 | 5/9 Secondary reference Howden Fluid Systems |
NSN 4820-01-370-4780 is a Disk,rupturable, manufactured by Oklahoma Safety Equipment Co Inc Dba Oseco Div Oklahoma Safety Equipment Co. (dba Oseco), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-370-4780 has 2 manufacturer part numbers on file: 334251P01 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), SK-0148 (Oklahoma Safety Equipment Co Inc Dba Oseco Div Oklahoma Safety Equipment Co. (dba Oseco)).
Key specifications for SK-0148: Disk Material: NICKEL ALLOY; Burst Pressure: 4000.0 PRESSURE POUNDS PER SQUARE INCH GAGE; Burst Temperature: 240.0 FAHRENHEIT DEGF; Disk Size: 0.750 INCHES IN. 4 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.