The Valve,butterfly, cataloged under National Stock Number 4820-00-978-1775, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Allison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342); Janke & Company Inc Dba Electronic Brazing Co Div (CAGE 31682); Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (CAGE 59364) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-978-1775 |
| Primary Part Number | 6799435-51 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| 6799435-51 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6799435-51 PRIMARY | Janke & Company Inc Dba Electronic Brazing Co Div (USA) |
| 122592-2-2 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| Reference | Meaning |
|---|---|
| 6799435-51 | 5/9 Secondary reference General Motors Corp |
| 122592-2-2 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Div Aerospace - Torrance |
| 122592-2-2 | 5/9 Secondary reference U.S. Government activity |
| 122592-2-2 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 4820-00-978-1775 is a Valve,butterfly, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-978-1775 has 3 manufacturer part numbers on file: 6799435-51 (Allison Transmission Inc Dba Allison Transmission, Inc), 6799435-51 (Janke & Company Inc Dba Electronic Brazing Co Div), 122592-2-2 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
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.