The Valve,safety Relief, cataloged under National Stock Number 4820-01-119-7640, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Altec Air, Llc Dba Altec Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-119-7640 |
| Primary Part Number | 3996 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Altec Air, Llc Dba Altec Llc |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Material | COPPER ALLOY BODY |
| Adjustable Pressure Range | +5.0 TO 65.0 POUNDS PER SQUARE INCH LBS |
| Connection Style | PLAIN (PIPE) FIRST END |
| Style Designator | ANGLE |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Connection Style | PLAIN (TUBE) SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Disk Loading Method | SPRING |
| Nominal Outside Diameter Tube Accommodated | 0.188 INCHES SECOND END IN |
| Thread Series Designator | NPT FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Flow Control Device | BALL |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3996 PRIMARY | Altec Air, Llc Dba Altec Llc (USA) |
NSN 4820-01-119-7640 is a Valve,safety Relief, manufactured by Altec Air, Llc Dba Altec Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-119-7640 has 1 cross-referenced part number: 3996 (Altec Air, Llc Dba Altec Llc).
There are 3 known substitutes for 4820-01-119-7640: 9540-00-251-1798, 5950-00-461-8203, 5325-00-550-0476. Verify interchangeability with system specifications before substitution.
Key specifications for 3996: Connection Type: THREADED EXTERNAL PIPE FIRST END; Material: COPPER ALLOY BODY; Adjustable Pressure Range: +5.0 TO 65.0 POUNDS PER SQUARE INCH LBS; Connection Style: PLAIN (PIPE) FIRST END. 14 total characteristics are documented in the Federal Logistics Information System.