The Valve,gate, cataloged under National Stock Number 4820-00-268-8773, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 11 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 | 4820-00-268-8773 |
| Primary Part Number | 1787 SZ 4 IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | CANCELLED |
| Bonnet Type | INSIDE SCREW |
| Inlet Relationship with Outlet | IDENTICAL |
| Maximum Operating Temp and Media for Which Designed | 450.0 FAHRENHEIT STEAM AND 450.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Material | IRON CAST UNS F12102 BODY |
| Pressure Class | ERR-060 |
| Material Document and Classification | ASTM A126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Flange Face Design | PLAIN |
| Face to Face Distance | 9.000 INCHES IN |
| 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 |
| Stem Type | NONRISING |
| Material | COPPER ALLOY 836 DISK |
| Material Document and Classification | ASTM B147ALLOY 7A ASSN STD SINGLE MATERIAL RESPONSE STEM A |
| Valve Operation Method | MANUAL |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE DISK |
| Features Provided | BONNET PACKING |
| Connection Type | FLANGE, ROUND W/HOLES |
| Bolt Hole Quantity | 8 |
| Material | COPPER ALLOY 836 SEAT |
| Valve Size | 4.000 INCHES IN |
| Material | COPPER ALLOY STEM |
| Flange Diameter | 9.000 INCHES IN |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Bonnet Attachment Method | BOLTED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1138 | Hammond Valve Corp (USA) |
| 326 | Jenkins Bros (USA) |
| 1787 SZ 4 IN PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| MSS-SP-70-76 | Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA) |
| 1787 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 1428AND1663 | Lunkenheimer Co (USA) |
| FIG 326 SIZE 4 IN | Jenkins Bros (USA) |
| G-612 4.0 IN PRIMARY | Stockham Valves and Fittings Inc (USA) |
| WWV58 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 62F-IB7 | Newmans Inc New Jersey Div (USA) |
| 8719F | Walworth-Aloyco (USA) |
| 125PSI SIZE 4IN NON RISING STEM | Walworth-Aloyco (USA) |
| 1138 | Lunkenheimer Co (USA) |
| WW1-58 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 058 | Kennedy Valve Div of Itt Grinnell Valve Co Inc (USA) |
| 1428 | Lunkenheimer Co (USA) |
| 461 | Crane Co Div Valve Div (USA) |
NSN 4820-00-268-8773 is a Valve,gate, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-268-8773 has 17 cross-referenced part numbers: 1138 (Hammond Valve Corp), 326 (Jenkins Bros), 1787 SZ 4 IN (William Powell Company, the Dba Powell Valve Div the Starflo Corporation), MSS-SP-70-76 (Manufacturers Standardization Society of the Valve and Fittings Industry Inc), 1787 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation) and 12 more.
There are 12 known substitutes for 4820-00-268-8773: 5310-00-063-1276, 4820-00-142-3139, 5120-00-144-2089 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1787 SZ 4 IN: Bonnet Type: INSIDE SCREW; Inlet Relationship with Outlet: IDENTICAL; Maximum Operating Temp and Media for Which Designed: 450.0 FAHRENHEIT STEAM AND 450.0 FAHRENHEIT WATER-OIL-GAS DEGF; Material: IRON CAST UNS F12102 BODY. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-268-8773 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.