The Valve,vacuum Breaking, cataloged under National Stock Number 4820-01-121-7889, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-121-7889 |
| Primary Part Number | BMC3479E-1 |
| Item Name | Valve,vacuum Breaking |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 |
| Status | ACTIVE |
| First End Style Designator | STREANLINED WITH ONE BRAZING RING |
| Material | COPPER ALLOY 836 BODY |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Flow Control Device | PISTON, FREE TYPE |
| Material | COPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Second End Relationship with First End | IDENTICAL |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| Temp Adjustability | NOT ADJUSTABLE |
| Media for Which Designed | WATER, FRESH |
| End Connection Quantity | 2 |
| Temp Rating | 185.0 FAHRENHEIT DEGF |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BMC3479E-1 PRIMARY | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 (USA) |
| 3479 | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 (USA) |
| BMC-3479 | Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746 (USA) |
NSN 4820-01-121-7889 is a Valve,vacuum Breaking, manufactured by Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-121-7889 has 3 cross-referenced part numbers: BMC3479E-1 (Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746), 3479 (Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746), BMC-3479 (Bidoro Mfg Co Po Box 103 Huntington Sta Ny 11746).
There are 9 known substitutes for 4820-01-121-7889: 7920-00-044-9281, 3110-00-100-9554, 5930-00-275-3110 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for BMC3479E-1: First End Style Designator: STREANLINED WITH ONE BRAZING RING; Material: COPPER ALLOY 836 BODY; Material Document and Classification: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY; Flow Control Device: PISTON, FREE TYPE. 13 total characteristics are documented in the Federal Logistics Information System.