The Seat,valve, cataloged under National Stock Number 4820-01-079-1881, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 7 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-079-1881 |
| Primary Part Number | 035-27663 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| Body Outside Diameter | 2.125 INCHES NOMINAL IN |
| Body Stepped Inside Diameter | 1.125 INCHES NOMINAL FIRST STEP IN |
| Body Stepped Inside Diameter | 1.750 INCHES NOMINAL SECOND STEP IN |
| Style Designator | FAUCET |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 035-27663 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| 035-27663Z | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
NSN 4820-01-079-1881 is a Seat,valve, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-079-1881 has 2 manufacturer part numbers on file: 035-27663 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), 035-27663Z (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).
Key specifications for 035-27663: Overall Height: 0.875 INCHES NOMINAL IN; Body Outside Diameter: 2.125 INCHES NOMINAL IN; Body Stepped Inside Diameter: 1.125 INCHES NOMINAL FIRST STEP IN; Body Stepped Inside Diameter: 1.750 INCHES NOMINAL SECOND STEP IN. 7 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.