The Cock,poppet Drain, cataloged under National Stock Number 4820-00-773-7224, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-773-7224 |
| Primary Part Number | 2-52918-1 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Nominal Outside Diameter Hose Accommodated | 1.250 INCHES FIRST END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE FIRST END |
| Style Designator | STRAIGHT THRU |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| 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 |
|---|---|
| 2-52918-1 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1340C | 3/2 Design control — primary reference U.S. Government activity |
| 2-52918-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 2-52918-1 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 4820-00-773-7224 is a Cock,poppet Drain, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-773-7224 has 1 manufacturer part number on file: 2-52918-1 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2810-01-387-0028. Verify interchangeability with system specifications before substitution.
Key specifications for 2-52918-1: Flow Control Device: POPPET; Nominal Outside Diameter Hose Accommodated: 1.250 INCHES FIRST END IN; Connection Type: UNTHREADED EXTERNAL HOSE FIRST END; Style Designator: STRAIGHT THRU. 7 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.