The Breaker,vacuum,flush Valve, cataloged under National Stock Number 4510-01-660-1580, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Component Hardware Group, Inc.. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4510-01-660-1580 |
| Primary Part Number | K50-X137 |
| Item Name | Breaker,vacuum,flush Valve |
| FSC / FSG | 4510 / 45 — Plumbing Fixtures and Accessories |
| Manufacturer | Component Hardware Group, Inc. |
| Status | ACTIVE |
| Outlet Connection Size | 9.53 |
| Inlet Connection Type | THREADED INTERNAL PIPE |
| Inlet Connection Size | 9.53 |
| Outlet Connection Type | THREADED INTERNAL PIPE |
| 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 |
|---|---|
| K50-X137 PRIMARY | Component Hardware Group, Inc. (USA) |
NSN 4510-01-660-1580 is a Breaker,vacuum,flush Valve, manufactured by Component Hardware Group, Inc., classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
NSN 4510-01-660-1580 has 1 manufacturer part number on file: K50-X137 (Component Hardware Group, Inc.).
Key specifications for K50-X137: Outlet Connection Size: 9.53; Inlet Connection Type: THREADED INTERNAL PIPE; Special Features: PROVIDES HIGH WATER FLOW WITH MINIMAL PRESSURE LOSS, SUITABLE FOR TEMP UP TO 210DEG F. FULL SIZE ORIFICE TO ASSURE PIPE SIZE CAPACITY, 3/8 NPT DEGF; Part Name Assigned by Controlling Agency: ATMOSPHERIC VACUUM BREAKER. 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.
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.