The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-545-6637, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gulf Coast Holdings, Inc Dba Unidynamics. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Gulf Coast Holdings, Inc Dba Unidynamics (CAGE 0DHG4) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-545-6637 |
| Primary Part Number | 15612080-1 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gulf Coast Holdings, Inc Dba Unidynamics |
| 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 |
|---|---|
| 15612080-1 PRIMARY | Gulf Coast Holdings, Inc Dba Unidynamics (USA) |
| Reference | Meaning |
|---|---|
| 15611200 REV AD ITEM 183 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 15612080 ASSY 15612080-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 15612080 ASSY 15612080-1 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 15612080 | D/9 Drawing number reference only Gulf Coast Holdings, Inc Dba Unidynamics |
| 15611200 REV AD ITEM 183 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 15612080-1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-545-6637 is a Valve,linear,directional Control, manufactured by Gulf Coast Holdings, Inc Dba Unidynamics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-545-6637 has 1 manufacturer part number on file: 15612080-1 (Gulf Coast Holdings, Inc Dba Unidynamics).
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.