The Slide,directional Control Linear, cataloged under National Stock Number 4820-00-174-3265, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. Government technical data includes 1 specification, 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. 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 | 4820-00-174-3265 |
| Primary Part Number | 452901 |
| Item Name | Slide,directional Control Linear |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| Status | ACTIVE |
| Material | STEEL |
| 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 |
|---|---|
| 452901 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
NSN 4820-00-174-3265 is a Slide,directional Control Linear, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-174-3265 has 1 manufacturer part number on file: 452901 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
3 possible matches (shared part number, not a government interchangeability claim): 6525-00-457-6838, 1630-01-034-3753, 6240-01-672-5614. Verify interchangeability with system specifications before substitution.
Key specifications for 452901: Overall Length: 2.500 INCHES NOMINAL IN; Special Features: 1.187 IN. LARGEST OD,6 PORTS UNTHREADED,0.218 IN. DOA OF PORTS,0.562 IN. BORE DIA,STRAIGHT BORE IN; Material: STEEL. 1 specification is 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.