The Seat,valve, cataloged under National Stock Number 4820-01-023-6008, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-023-6008 |
| Primary Part Number | V1165-506-1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.187 INCHES NOMINAL IN |
| Flange Diameter | 1.045 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-P-16232,TYPE Z,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Outside Diameter | 0.740 INCHES NOMINAL IN |
| Seal Accommodation Type | GROOVED |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.561 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Under Flange Height | 0.093 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| V1165-506-1 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| Reference | Meaning |
|---|---|
| V1165-506-1 | 5/9 Secondary reference Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
| V1165-506 | D/9 Drawing number reference only Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
NSN 4820-01-023-6008 is a Seat,valve, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-023-6008 has 1 manufacturer part number on file: V1165-506-1 (Hydraulics International, Inc. Dba Hydraulics International Inc).
Key specifications for V1165-506-1: Flange Seat to Disk End Height: 0.187 INCHES NOMINAL IN; Flange Diameter: 1.045 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-P-16232,TYPE Z,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Body Outside Diameter: 0.740 INCHES NOMINAL IN. 11 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.