The Valve,check, cataloged under National Stock Number 4820-00-640-0447, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-640-0447 |
| Primary Part Number | 2275TYPEYSIZE1-14 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | CANCELLED |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | IRON CAST OVERALL |
| Material Document and Classification | ASTMFEB000 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Style Designator | STRAIGHT THRU |
| Nominal Thread Size | 1.250 INCHES ALL ENDS IN |
| Maximum Operating Temp | 550.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 346 1-2 | Crane Co Div Valve Div (USA) |
| 2275TYPEYSIZE1-14 PRIMARY | Crane Co Div Valve Div (USA) |
| 346 1-2SIZE1 1-4 PRIMARY | Crane Co Div Valve Div (USA) |
| 346 1-2 1-250 | Air Products & Chemicals, Inc (USA) |
NSN 4820-00-640-0447 is a Valve,check, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-640-0447 has 4 cross-referenced part numbers: 346 1-2 (Crane Co Div Valve Div), 2275TYPEYSIZE1-14 (Crane Co Div Valve Div), 346 1-2SIZE1 1-4 (Crane Co Div Valve Div), 346 1-2 1-250 (Air Products & Chemicals, Inc).
There are 5 known substitutes for 4820-00-640-0447: 3110-00-100-0269, 3030-00-528-4609, 4820-00-618-5445 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2275TYPEYSIZE1-14: Connection Type: THREADED INTERNAL PIPE ALL ENDS; Valve Operation Method: AUTOMATIC; Flow Control Device: DISK; Mounting Position: HORIZONTAL. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-640-0447 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.