The Valve,float, cataloged under National Stock Number 4820-01-346-9643, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Samuel Specialty Metals. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-346-9643 |
| Primary Part Number | V15B |
| Item Name | Valve,float |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Samuel Specialty Metals |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 1 FLOAT |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Material | BRONZE BODY |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| B-5951 1.50IPS | Samuel Specialty Metals (USA) |
| V15B PRIMARY | Samuel Specialty Metals (USA) |
| Reference | Meaning |
|---|---|
| V15B | 5/9 Secondary reference Pmc Industries Inc Draffette Div |
NSN 4820-01-346-9643 is a Valve,float, manufactured by Samuel Specialty Metals, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-346-9643 has 2 manufacturer part numbers on file: B-5951 1.50IPS (Samuel Specialty Metals), V15B (Samuel Specialty Metals).
Key specifications for V15B: Flow Control Device: DISK; Furnished Items and Quantity: 1 FLOAT; Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 10 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.