The Valve,gate, cataloged under National Stock Number 4820-00-843-2779, 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 5 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 | 4820-00-843-2779 |
| Primary Part Number | 440-1-2 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | CANCELLED |
| Inlet Relationship with Outlet | IDENTICAL |
| Stem Type | RISING |
| Maximum Operating Temp and Media for Which Designed | 353.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Material Document and Classification | ASTMCU0836 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure and Type | 125.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 200.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Series Designator | NPT |
| Material | COPPER ALLOY 836 BODY |
| Material | COPPER ALLOY 836 DISK |
| Material Document and Classification | ASTMCU0836 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material | COPPER ALLOY 836 SEAT |
| Material Document and Classification | ASTMCU0836 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Material | COPPER ALLOY STEM |
| Material Document and Classification | ASTMCUB000 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Valve Size | 0.500 INCHES IN |
| Valve Operation Method | MANUAL |
| Features Provided | BONNET PACKING |
| Bonnet Type | INSIDE SCREW |
| Nominal Thread Size | 0.500 INCHES IN |
| Pressure Class | ERR-060 |
| Bonnet Attachment Method | THREADED |
| Connection Type | THREADED INTERNAL PIPE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 95 1-2 | Lunkenheimer Co (USA) |
| 440-1-2 PRIMARY | Crane Co Div Valve Div (USA) |
| 1B643 1/2 | Hammond Valve Corp (USA) |
| WWV54 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| FIG775 | The Walworth Company (USA) |
| PART 5 | The Walworth Company (USA) |
| IB643 SIZE 1/2 IN | Hammond Valve Corp (USA) |
NSN 4820-00-843-2779 is a Valve,gate, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-843-2779 has 7 cross-referenced part numbers: 95 1-2 (Lunkenheimer Co), 440-1-2 (Crane Co Div Valve Div), 1B643 1/2 (Hammond Valve Corp), WWV54 (Federal Specifications Promulgated by General Services Administration Washington DC), FIG775 (The Walworth Company) and 2 more.
There are 12 known substitutes for 4820-00-843-2779: 3455-00-011-8719, 5835-00-012-1846, 3110-00-107-7559 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 440-1-2: Inlet Relationship with Outlet: IDENTICAL; Stem Type: RISING; Maximum Operating Temp and Media for Which Designed: 353.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER-OIL-GAS DEGF; Material Document and Classification: ASTMCU0836 ASSN STD SINGLE MATERIAL RESPONSE BODY. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-843-2779 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.