The Valve,check, cataloged under National Stock Number 4820-00-949-7519, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crane Co Div Valve Div. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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 | 4820-00-949-7519 |
| Primary Part Number | 37 3-4 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | CANCELLED |
| Valve Operation Method | AUTOMATIC |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Maximum Operating Temp | 406.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Material | COPPER ALLOY BODY |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Flow Control Device | DISK |
| Maximum Operating Temp | 100.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Disk Loading Method | WEIGHT |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Thread Series Designator | NPT ALL ENDS |
| Material Document and Classification | ASTMCUB000 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Style Designator | STRAIGHT THRU |
| Nondefinitive Spec/std Data | 4 TYPE AND A CLASS AND 3/4 SIZE AND 1 END |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 431-0176 | Automation D S S Inc Sub of Ryan Technology Corp (USA) |
| WW-V-51 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 37 3-4 PRIMARY | Crane Co Div Valve Div (USA) |
| T-413-Y-3/4 | Nibco Inc (USA) |
| 513-3-4 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 904G | Hammond Valve Corp (USA) |
| A1088592G7 | L3harris Technologies, Inc. (USA) |
NSN 4820-00-949-7519 is a Valve,check, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-949-7519 has 7 cross-referenced part numbers: 431-0176 (Automation D S S Inc Sub of Ryan Technology Corp), WW-V-51 (Federal Specifications Promulgated by General Services Administration Washington DC), 37 3-4 (Crane Co Div Valve Div), T-413-Y-3/4 (Nibco Inc), 513-3-4 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc) and 2 more.
There are 12 known substitutes for 4820-00-949-7519: 5330-00-038-8900, 5935-00-059-3040, 5360-00-093-9479 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 37 3-4: Valve Operation Method: AUTOMATIC; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Material: PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE; Media for Which Designed: STEAM FIRST RESPONSE. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-949-7519 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.