The Valve,flow Control, cataloged under National Stock Number 4820-01-646-2492, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Deltrol Corp Deltrol Fluid Products Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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 | 4820-01-646-2492 |
| Primary Part Number | F20B |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Deltrol Corp Deltrol Fluid Products Div |
| Status | ACTIVE |
| Thread Series Designator | NPTF |
| Valve Size | 0.25 INCHES IN |
| Flow Control Device | BALL |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED INTERNAL PIPE |
| Body Material | COPPER ALLOY |
| End Connection Quantity | 2 |
| Nominal Thread Size | 0.25 INCHES IN |
| Nominal Pipe Size Accommodated | 0.25 INCHES IN |
| Face to Face Distance | 2.375 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| F20B PRIMARY | Deltrol Corp Deltrol Fluid Products Div (USA) |
| 6853 505-110 | Saab Ab,training and Simulation (SWE) |
| 6853 505-110 | Saab Aktiebolag (SWE) |
NSN 4820-01-646-2492 is a Valve,flow Control, manufactured by Deltrol Corp Deltrol Fluid Products Div, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-646-2492 has 3 cross-referenced part numbers: F20B (Deltrol Corp Deltrol Fluid Products Div), 6853 505-110 (Saab Ab,training and Simulation), 6853 505-110 (Saab Aktiebolag).
There are 3 known substitutes for 4820-01-646-2492: 4820-00-238-5372, 4820-01-176-9490, 3750-01-249-6360. Verify interchangeability with system specifications before substitution.
Key specifications for F20B: Thread Series Designator: NPTF; Valve Size: 0.25 INCHES IN; Flow Control Device: BALL; Valve Operation Method: AUTOMATIC. 10 total characteristics are documented in the Federal Logistics Information System.