The Valve,check, cataloged under National Stock Number 4820-00-287-4447, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-287-4447 |
| Primary Part Number | 548B-700-114 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | CANCELLED |
| Mounting Position | VERTICAL |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Flow Control Device | DISK |
| Nominal Thread Size | 1.250 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Material Document and Classification | QQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Material | COPPER ALLOY 836 BODY |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | COPPER ALLOY 836 SEAT |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material Document and Classification | QQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Thread Quantity Per Inch | 11-1/2 FIRST END |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Maximum Operating Temp | 150.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Maximum Operating Temp | 353.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 231 1-1/4 | Red-White Valve Corp. (USA) |
| 375-1 1-4 | Strataflo Products, Inc (USA) |
| FIG75 1 1-4 | The Walworth Company (USA) |
| 548 1-1/4IN | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 548B-114 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 50357 | Ohio Brass Co (USA) |
| 902 1-1/4IN | Hammond Valve Corp (USA) |
| 548B-700-114 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 29 1-1/4 IN PRIMARY | Crane Co Div Valve Div (USA) |
| FIG75 | The Walworth Company (USA) |
NSN 4820-00-287-4447 is a Valve,check, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-287-4447 has 10 cross-referenced part numbers: 231 1-1/4 (Red-White Valve Corp.), 375-1 1-4 (Strataflo Products, Inc), FIG75 1 1-4 (The Walworth Company), 548 1-1/4IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 548B-114 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc) and 5 more.
There are 10 known substitutes for 4820-00-287-4447: 4820-00-071-1871, 3020-00-203-1535, 4820-00-287-4446 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 548B-700-114: Mounting Position: VERTICAL; Thread Direction: RIGHT-HAND ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Flow Control Device: DISK. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-287-4447 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.