The Valve,safety Relief, cataloged under National Stock Number 4820-01-392-8098, 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 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-392-8098 |
| Primary Part Number | 109840-1-2 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Style Designator | CROSS FLANGED ENDS |
| Material Document and Classification | MIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | ANODIZE LOCATION NOT OTHERWISE SPECIFIED |
| Face to Face Distance | 3.760 INCHES IN |
| First Connection Face to Centerline Distance | 3.620 INCHES IN |
| Material | ALUMINUM ALLOY A356.0 OVERALL |
| Valve Operation Method | AIR |
| 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 |
|---|---|
| 109840-1-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 10159534 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-392-8098 is a Valve,safety Relief, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-392-8098 has 1 manufacturer part number on file: 109840-1-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for 109840-1-2: Style Designator: CROSS FLANGED ENDS; Material Document and Classification: MIL-A-21180 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Special Features: SURGE CONTROL VALVE; Surface Treatment: ANODIZE LOCATION NOT OTHERWISE SPECIFIED. 7 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 4820-01-392-8098 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.