The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-348-4391, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Enviro Systems Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-348-4391 |
| Primary Part Number | 70A005-1 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Enviro Systems Inc |
| Status | ACTIVE |
| Second End Seat Angle in Deg | 37.0 |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 3A A |
| Body Style | STRAIGHT THRU |
| First End Seat Angle in Deg | 37.0 |
| First End Thread Class | 3A A |
| First End Style Designator | FLARED |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | FLARED |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Media for Which Designed | FREON USE REFRIGERANT |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| Thread Size and Series/type Designator | 7/8-14 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Size and Series/type Designator | 3/4-16 UNIFIED NATIONAL JOINT FINE (UNJF) MODIFIED SECOND END |
| 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 |
|---|---|
| 70A005-1 PRIMARY | Enviro Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 70A005-1 | 3/9 Design control — primary reference Aero Aire Corporation |
NSN 4820-01-348-4391 is a Valve,regulating,fluid Pressure, manufactured by Enviro Systems Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-348-4391 has 1 manufacturer part number on file: 70A005-1 (Enviro Systems Inc).
Key specifications for 70A005-1: Second End Seat Angle in Deg: 37.0; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Second End Thread Class: 3A A. 16 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.