The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-134-7176, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cessna Aircraft Co Fluid Power Div. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-134-7176 |
| Primary Part Number | 30921CAL |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cessna Aircraft Co Fluid Power Div |
| 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 |
|---|---|
| 30921CAL | Cessna Aircraft Co Fluid Power Div (USA) |
| Reference | Meaning |
|---|---|
| 520-065 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-134-7176 is a Valve,linear,directional Control, manufactured by Cessna Aircraft Co Fluid Power Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-134-7176 has 1 manufacturer part number on file: 30921CAL (Cessna Aircraft Co Fluid Power Div).
3 possible matches (shared part number, not a government interchangeability claim): 4220-01-237-1608, 3020-01-277-5611, 5998-01-322-7176. Verify interchangeability with system specifications before substitution.
Key specifications for 30921CAL: Special Features: WITH 1 CAP P/N 520-043-05; 1 SEAL REPAIR KIT P/N 520-056-01; 1 SPRING (DARK BLUE) P/N 520-037-05; 1 SHIM (0.010) P/N 520-037-07; 1 SHIM (0.015) P/N 520-043-08; 1 SHIM (0.035) P/N 520-043-09. 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.