The Valve,lift-Check, cataloged under National Stock Number 4820-00-287-2777, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-287-2777 |
| Primary Part Number | 158B SZ 1 IN |
| Item Name | Valve,lift-Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | William Powell Company, the Dba Powell Valve Div the Starflo Corporation |
| Status | CANCELLED |
| Maximum Operating Temp | 500.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Material | COPPER ALLOY 836 SEAT |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material | COPPER ALLOY 836 BODY |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Material Document and Classification | ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Style Designator | STRAIGHT THRU |
| Maximum Operating Temp | 100.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Bonnet Attachment Method | THREADED |
| Mounting Position | HORIZONTAL |
| Bonnet Type | INSIDE SCREW |
| Flow Control Device | DISK |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Material | RUBBER FLOW CONTROL DEVICE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FIG231 | Lunkenheimer Co (USA) |
| 1B948-1IN | Hammond Valve Corp (USA) |
| 73 1 IN | Walworth Co Marine Div (USA) |
| 901-125#-1IN. | Hammond Valve Corp (USA) |
| 012179-8 | Uniflite Inc (USA) |
| 73 | Walworth Co Marine Div (USA) |
| WW-V-51 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 158B SZ 1 IN PRIMARY | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 158 | William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA) |
| 20 | Crane Co Div Valve Div (USA) |
| 901-1IN | Hammond Valve Corp (USA) |
| 7108-3018 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 4820-00-287-2777 is a Valve,lift-Check, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-287-2777 has 12 cross-referenced part numbers: FIG231 (Lunkenheimer Co), 1B948-1IN (Hammond Valve Corp), 73 1 IN (Walworth Co Marine Div), 901-125#-1IN. (Hammond Valve Corp), 012179-8 (Uniflite Inc) and 7 more.
There are 2 known substitutes for 4820-00-287-2777: 4820-00-287-2778, 4730-00-842-6774. Verify interchangeability with system specifications before substitution.
Key specifications for 158B SZ 1 IN: Maximum Operating Temp: 500.0 FAHRENHEIT FIRST RESPONSE DEGF; Material: COPPER ALLOY 836 SEAT; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Material Document and Classification: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-287-2777 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.