The Cock,poppet Drain, cataloged under National Stock Number 4820-00-083-1276, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Auto-Valve, Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-083-1276 |
| Primary Part Number | 50B5 |
| Item Name | Cock,poppet Drain |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Auto-Valve, Inc |
| Status | ACTIVE |
| Thread Class | 3B FIRST END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Surface Treatment | ANODIZE |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | ALUMINUM ALLOY BODY |
| Material | ALUMINUM ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 0.437 INCHES FIRST END IN |
| Operating Pressure | 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flow Control Device | POPPET |
| Thread Series Designator | UNF FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 50B5 PRIMARY | Auto-Valve, Inc (USA) |
| 128SCP167-5 | Northrop Grumman Systems Corporation (USA) |
| 128SCP167-5 | Northrop Grumman Systems Corporation (USA) |
NSN 4820-00-083-1276 is a Cock,poppet Drain, manufactured by Auto-Valve, Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-083-1276 has 3 cross-referenced part numbers: 50B5 (Auto-Valve, Inc), 128SCP167-5 (Northrop Grumman Systems Corporation), 128SCP167-5 (Northrop Grumman Systems Corporation).
There are 2 known substitutes for 4820-00-083-1276: 5960-00-188-0842, 5310-01-137-8762. Verify interchangeability with system specifications before substitution.
Key specifications for 50B5: Thread Class: 3B FIRST END; Connection Style: GASKET SEAL (BOSS) FIRST END; Special Features: MOUNTING FLANGE 1.500 FROM PORT END; BODY STYLE STRAIGHT THROUGH; Surface Treatment: ANODIZE. 14 total characteristics are documented in the Federal Logistics Information System.