The Cap,valve, cataloged under National Stock Number 4810-01-423-3586, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-423-3586 |
| Primary Part Number | BMC-3479S PART 4 |
| Item Name | Cap,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 |
| Status | ACTIVE |
| Valve Model Number for Which Designed | BMC-3479S |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Material | COPPER ALLOY |
| Attachment Method | GROOVED |
| 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 |
|---|---|
| BMC-3479S PART 4 PRIMARY | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 (USA) |
| Reference | Meaning |
|---|---|
| BMC-3479S | D/9 Drawing number reference only Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 |
NSN 4810-01-423-3586 is a Cap,valve, manufactured by Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-423-3586 has 1 manufacturer part number on file: BMC-3479S PART 4 (Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746).
2 possible matches (shared part number, not a government interchangeability claim): 4810-01-423-3590, 4820-01-452-0647. Verify interchangeability with system specifications before substitution.
Key specifications for BMC-3479S PART 4: Valve Model Number for Which Designed: BMC-3479S; Overall Length: 1.750 INCHES NOMINAL IN; Valve Size for Which Designed: 0.500 INCHES IN; Special Features: USED ON BACKFLOW PREVENTER-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.