The Valve,poppet, cataloged under National Stock Number 4820-01-040-1767, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-040-1767 |
| Primary Part Number | 3161931-2 |
| Item Name | Valve,poppet |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL CRES 17-4PH AMS5643; HEAT TREAT PER AIRESEARCH HT-5038 COND H1025 TO OBTAIN A HARDNESS OF RC 35-42; 1.080 IN. MIN 1.090 IN. MAX LENGTH IN |
| 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 |
|---|---|
| 3161931-2 | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 3161931-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 3161931-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-040-1767 is a Valve,poppet, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-040-1767 has 2 manufacturer part numbers on file: 3161931-2 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 3161931-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 3161931-2: General Characteristics Item Description: STEEL CRES 17-4PH AMS5643; HEAT TREAT PER AIRESEARCH HT-5038 COND H1025 TO OBTAIN A HARDNESS OF RC 35-42; 1.080 IN. MIN 1.090 IN. MAX LENGTH IN. 1 specification is 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.