The Valve,expansion, cataloged under National Stock Number 4820-00-573-3972, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Singer Co the Controls Div. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-573-3972 |
| Primary Part Number | 204C |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Singer Co the Controls Div |
| Status | CANCELLED |
| Valve Expansion Control Type | PRESSURE |
| Second End Nominal Pipe Size Accommodated | 0.250 INCHES IN |
| First End Style Designator | FLARED |
| Body Style | ANGLE GIVE "ADQM" OR "ADQN" IF FLANGED ONE OR TWO ENDS |
| Valve Equalizer Location | INTERNAL |
| Valve Pressure Limiting Device | NOT INCLUDED |
| First End Thread Direction | RIGHT-HAND |
| Second End Connection Type | THREADED INTERNAL PIPE |
| First End Thread Class | 2A A |
| First End Outside Diameter Tube Accommodated | 0.188 INCHES NOMINAL IN |
| Media for Which Designed | REFRIGERANT 12 |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Second End Thread Direction | RIGHT-HAND |
| Flow Control Device | DIAPHRAGM |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| First End Seat Angle in Deg | 37.0 |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Style Designator | PLAIN |
| Refrigeration Capacity in Btu Per Hour | 12.0 |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY BODY |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-573-3972 is a Valve,expansion, manufactured by Singer Co the Controls Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-573-3972 has 2 cross-referenced part numbers: 204C (Singer Co the Controls Div), 50750 (Singer Co the Controls Div).
There are 11 known substitutes for 4820-00-573-3972: 6625-00-044-4435, 5133-00-203-6477, 6625-00-489-3732 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 204C: Valve Expansion Control Type: PRESSURE; Special Features: TEMP RATING: -40.0 DEG FAHRENHEIT TO 50.0 DEG FAHRENHEIT; Second End Nominal Pipe Size Accommodated: 0.250 INCHES IN; First End Style Designator: FLARED. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-573-3972 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.