The Valve,check, cataloged under National Stock Number 4820-00-287-4380, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-287-4380 |
| Primary Part Number | 54B-700-100 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | CANCELLED |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Mounting Position | VERTICAL |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Material Document and Classification | QQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Material Document and Classification | QQ-C-390,ALLOY B5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Thread Series Designator | NPT ALL ENDS |
| Thread Quantity Per Inch | 11-1/2 FIRST END |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 904-1 | Hammond Valve Corp (USA) |
| 548-1IN | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 548B-100 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 54B-700-100 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 1FIG75 | The Walworth Company (USA) |
NSN 4820-00-287-4380 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 4820-00-287-4380 has 5 cross-referenced part numbers: 904-1 (Hammond Valve Corp), 548-1IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 548B-100 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 54B-700-100 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 1FIG75 (The Walworth Company).
There are 12 known substitutes for 4820-00-287-4380: 5945-00-133-9150, 5930-00-189-6585, 5985-00-283-2651 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 54B-700-100: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Valve Operation Method: AUTOMATIC; Flow Control Device: DISK; Mounting Position: VERTICAL. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-287-4380 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.