The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-159-6735, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 4 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 | 4820-01-159-6735 |
| Primary Part Number | 154475-3 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Flow Control Device | DISK, FLAT |
| End Connection Quantity | 3 |
| First End Connection Type | THREADED INTERNAL PIPE |
| Media for Which Designed | OIL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 154475-3 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| 154475-3-1 | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 4820-01-159-6735 is a Valve,relief,pressure and Temper, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-159-6735 has 2 manufacturer part numbers on file: 154475-3 (Honeywell International Inc. Div Aerospace - Torrance), 154475-3-1 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 154475-3: Flow Control Device: DISK, FLAT; End Connection Quantity: 3; First End Connection Type: THREADED INTERNAL PIPE; Special Features: INLET PRESSURE DIFFERENTIAL 95 PSI. 4 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.
NSN 4820-01-159-6735 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.