The Valve,vacuum Breaking, cataloged under National Stock Number 4820-01-406-6175, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Gits Mfg Co Inc. Government technical data includes 6 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 | 4820-01-406-6175 |
| Primary Part Number | 1654-012800 |
| Item Name | Valve,vacuum Breaking |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Gits Mfg Co Inc |
| Status | ACTIVE |
| First End Thread Direction | RIGHT-HAND |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| 1935AS445-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 1654-012800 PRIMARY | Gits Mfg Co Inc (USA) |
NSN 4820-01-406-6175 is a Valve,vacuum Breaking, manufactured by Gits Mfg Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-406-6175 has 2 manufacturer part numbers on file: 1935AS445-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 1654-012800 (Gits Mfg Co Inc).
Key specifications for 1654-012800: First End Thread Direction: RIGHT-HAND; Body Style: SINGLE CONNECTION, STRAIGHT FLOW; First End Style Designator: PLAIN; End Connection Quantity: 2. 6 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.