The Cap,valve, cataloged under National Stock Number 4820-01-253-4638, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-253-4638 |
| Primary Part Number | 035-16200 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| Valve Type for Which Designed | RELIEF |
| Outside Diameter | 2.250 INCHES NOMINAL IN |
| Valve Size for Which Designed | 2.000 INCHES IN |
| Width | 0.188 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 035-16200 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| 35-16200-Y | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| Reference | Meaning |
|---|---|
| 25-8153-W | D/9 Drawing number reference only Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
NSN 4820-01-253-4638 is a Cap,valve, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-253-4638 has 2 manufacturer part numbers on file: 035-16200 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), 35-16200-Y (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-299-4117. Verify interchangeability with system specifications before substitution.
Key specifications for 035-16200: Valve Type for Which Designed: RELIEF; Outside Diameter: 2.250 INCHES NOMINAL IN; Valve Size for Which Designed: 2.000 INCHES IN; Width: 0.188 INCHES NOMINAL IN. 5 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.