The Valve,linear,directional Control, cataloged under National Stock Number 4820-00-152-5974, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is A. J. Hudson Co.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-152-5974 |
| Primary Part Number | 789-501 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | A. J. Hudson Co. |
| 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 |
|---|---|
| 789-501 PRIMARY | A. J. Hudson Co. (USA) |
| Reference | Meaning |
|---|---|
| 2585912 | 1/2 Source control — Government-approved source U.S. Government activity |
| 789-501 | 5/9 Secondary reference I-T-E Imperial Corp Subsidiary of Gould Inc Airmatic/beckett Harcum Div |
NSN 4820-00-152-5974 is a Valve,linear,directional Control, manufactured by A. J. Hudson Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-152-5974 has 1 manufacturer part number on file: 789-501 (A. J. Hudson Co.).
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-213-1542, 5935-01-352-8918, 6160-01-394-8308. Verify interchangeability with system specifications before substitution.
Key specifications for 789-501: Special Features: 3 PORTS PER MS33649-3,3.25 IN.LG,2.125 IN.W,2.50 IN.H,OPERATING PRESSURE 2,000 PSI MAX,OPERATING TEMP M65 DEG F TO P160 DEG F IN. 0 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.