The Cock,drain, cataloged under National Stock Number 4820-01-176-9387, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Dynamics Land Systems Canadacorp. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-176-9387 |
| Primary Part Number | 10512521 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Dynamics Land Systems Canadacorp |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Series Designator | NPT 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 |
|---|---|
| 10512019 ITEM 10 | General Dynamics Land Systems Canadacorp (CAN) |
| 10512521 PRIMARY | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 600618 | 5/9 Secondary reference Kaydon Custom Filtration Corporation |
| 600618 | 5/9 Secondary reference Kaydon Corporation Dba Kaydon Filtration Group |
| 10512019 | D/9 Drawing number reference only General Dynamics Land Systems Canadacorp |
NSN 4820-01-176-9387 is a Cock,drain, manufactured by General Dynamics Land Systems Canadacorp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-176-9387 has 2 manufacturer part numbers on file: 10512019 ITEM 10 (General Dynamics Land Systems Canadacorp), 10512521 (General Dynamics Land Systems Canadacorp).
Key specifications for 10512521: Flow Control Device: DISK; Connection Type: THREADED EXTERNAL PIPE FIRST END; Thread Direction: RIGHT-HAND ALL ENDS; Special Features: BODY STYLE IS STRAIGHT THROUGH. 6 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.