The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-01-187-7082, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is M.t. Davidson Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-187-7082 |
| Primary Part Number | GCP-726 PIECE 21 |
| Item Name | Cock,shutoff,screw Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | M.t. Davidson Company |
| Status | ACTIVE |
| Flow Control Device | STEM |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Thread Class | 3A FIRST END A |
| 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 |
|---|---|
| GCP-726 PIECE 21 PRIMARY | M.t. Davidson Company (USA) |
| Reference | Meaning |
|---|---|
| GCP-726 | D/9 Drawing number reference only M.t. Davidson Company |
| GCP-726-21 | C/1 Advisory reference — outside the item-of-supply concept M.t. Davidson Company |
NSN 4820-01-187-7082 is a Cock,shutoff,screw Stem, manufactured by M.t. Davidson Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-187-7082 has 1 manufacturer part number on file: GCP-726 PIECE 21 (M.t. Davidson Company).
Key specifications for GCP-726 PIECE 21: Flow Control Device: STEM; Connection Type: THREADED EXTERNAL TUBE FIRST END; Style Designator: STRAIGHT THRU; Thread Direction: RIGHT-HAND FIRST END. 8 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.