The Valve,check, cataloged under National Stock Number 4820-01-237-6906, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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 | 4820-01-237-6906 |
| Primary Part Number | A-15621 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Mounting Position | HORIZONTAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Quantity Per Inch | 18 ALL ENDS |
| Thread Class | 3A ALL ENDS A |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | REFRIGERANT 12 SINGLE RESPONSE |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Material | COPPER ALLOY BODY |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Disk Loading Method | SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-237-6906 is a Valve,check, manufactured by Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-237-6906 has 2 cross-referenced part numbers: A-15621 (Mueller Brass Co Sub of Sharon Steel Corp an Nvf Co), A-15621 (Mueller Brass Co.).
There are 2 known substitutes for 4820-01-237-6906: 5310-00-608-1053, 5310-01-226-3033. Verify interchangeability with system specifications before substitution.
Key specifications for A-15621: Style Designator: STRAIGHT THRU; Connection Style: FLARED (TUBE) ALL ENDS; Seat Angle: 37.0 DEGREES ALL ENDS; Material: RUBBER SYNTHETIC FLOW CONTROL DEVICE. 18 total characteristics are documented in the Federal Logistics Information System.