The Head-Piston,hydraulic, cataloged under National Stock Number 4820-01-065-6618, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-065-6618 |
| Item Name | Head-Piston,hydraulic |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 2024-T4 OR 2024-T351 QQ-A-225/6,1.370 IN. LG,0.989 IN.MIN 0.992 IN. MAX OD 1ST END,0.310 IN. OD 1.550 IN. LG 2ND END,0.915 IN.OD0.570 IN. LG BODY IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 504818-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-065-6618 is a Head-Piston,hydraulic, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-065-6618: General Characteristics Item Description: ALUMINUM ALLOY 2024-T4 OR 2024-T351 QQ-A-225/6,1.370 IN. LG,0.989 IN.MIN 0.992 IN. MAX OD 1ST END,0.310 IN. OD 1.550 IN. LG 2ND END,0.915 IN.OD0.570 IN. LG BODY IN. 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.
NSN 4820-01-065-6618 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.