The Valve,linear,directional Control, cataloged under National Stock Number 4820-01-137-1869, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deval Life Cycle Support Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-137-1869 |
| Primary Part Number | 787AS271-1 |
| Item Name | Valve,linear,directional Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Deval Life Cycle Support Llc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 787AS271-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 787AS271-1 PRIMARY | Deval Life Cycle Support Llc (USA) |
| Reference | Meaning |
|---|---|
| D1BL1C | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| 787AS271 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4820-01-137-1869 is a Valve,linear,directional Control, manufactured by Deval Life Cycle Support Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-137-1869 has 2 manufacturer part numbers on file: 787AS271-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 787AS271-1 (Deval Life Cycle Support Llc).
Key specifications for 787AS271-1: Criticality Code Justification: FEAT; Special Features: F-14 JET;WEAPON SYSTEM ESSENTIAL; End Item Identification: AIRCRAFT, HORNET, F/A-18. 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.