The Cock,drain, cataloged under National Stock Number 4820-00-958-9550, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Army Aviation and Missile Command. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Cock,drain |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Raytheon Company (CAGE 54X10); Raytheon Company Dba Raytheon Co (CAGE 3B150); Rgi Inc Dba Rgi Inc (CAGE 59375); Us Army Aviation and Missile Command (CAGE 18876); Curtis Superior Valve Co., Inc. Dba Curtis Superior Valve Co (CAGE 47038) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-958-9550 |
| Primary Part Number | 9176323 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| 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 |
|---|---|
| 9176323 | Raytheon Company (USA) |
| 9176323 | Raytheon Company Dba Raytheon Co (USA) |
| 9176323 | Rgi Inc Dba Rgi Inc (USA) |
| 9176323 PRIMARY | Us Army Aviation and Missile Command (USA) |
| CCB-7500-5 | Curtis Superior Valve Co., Inc. Dba Curtis Superior Valve Co (USA) |
| Reference | Meaning |
|---|---|
| 3-329114 | 5/1 Secondary reference U.S. Government activity |
| 9176323 | 5/9 Secondary reference Raytheon Company Div Corp |
| 9176323 | 5/9 Secondary reference Wade Enterprises |
NSN 4820-00-958-9550 is a Cock,drain, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-958-9550 has 5 manufacturer part numbers on file: 9176323 (Raytheon Company), 9176323 (Raytheon Company Dba Raytheon Co), 9176323 (Rgi Inc Dba Rgi Inc), 9176323 (Us Army Aviation and Missile Command), CCB-7500-5 (Curtis Superior Valve Co., Inc. Dba Curtis Superior Valve Co).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-240-9893. Verify interchangeability with system specifications before substitution.
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.