The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-134-0301, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Scott Specialty Gases, Inc. Dba Scott Medical Products. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-134-0301 |
| Primary Part Number | 51-14A-165 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Scott Specialty Gases, Inc. Dba Scott Medical Products |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | COPPER ALLOY AND NICKEL OVERALL |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 0.250-18 NPT FIRST END |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 51-14A-165 PRIMARY | Scott Specialty Gases, Inc. Dba Scott Medical Products (USA) |
| Reference | Meaning |
|---|---|
| 7916286-3 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| 14A165 | 5/9 Secondary reference Scott Specialty Gases, Inc. Dba Scott Medical Products |
| 14-AN | 5/9 Secondary reference Scott Specialty Gases, Inc. Dba Scott Medical Products |
NSN 4820-01-134-0301 is a Valve,regulating,fluid Pressure, manufactured by Scott Specialty Gases, Inc. Dba Scott Medical Products, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-134-0301 has 1 manufacturer part number on file: 51-14A-165 (Scott Specialty Gases, Inc. Dba Scott Medical Products).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-619-5583. Verify interchangeability with system specifications before substitution.
Key specifications for 51-14A-165: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Remote Actuation Method: DIAPHRAGM. 13 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.