The Cock,plug, cataloged under National Stock Number 4820-00-030-0933, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cummins Inc.. Government technical data includes 17 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 | 4820-00-030-0933 |
| Primary Part Number | S1873 |
| Item Name | Cock,plug |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.438 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.438 INCHES FIRST END IN |
| Flow Style | TWO WAY TWO PORT 90 DEGREE PLUG TURN |
| Features Provided | NONADJUSTABLE ROTATION |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.125 INCHES FIRST END IN |
| Thread Class | 3B SECOND END |
| Thread Quantity Per Inch | 24 SECOND END |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Thread Series Designator | UNS SECOND END |
| Thread Series Designator | UNF FIRST END |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| S1873 PRIMARY | Cummins Inc. (USA) |
NSN 4820-00-030-0933 is a Cock,plug, manufactured by Cummins Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-030-0933 has 1 manufacturer part number on file: S1873 (Cummins Inc.).
Key specifications for S1873: Connection Style: GASKET SEAL (BOSS) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Nominal Outside Diameter Tube Accommodated: 0.438 INCHES SECOND END IN; Nominal Outside Diameter Tube Accommodated: 0.438 INCHES FIRST END IN. 17 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.