The Valve,check, cataloged under National Stock Number 4820-00-273-9934, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Nibco Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-273-9934 |
| Primary Part Number | F-918-B8 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Nibco Inc |
| Status | CANCELLED |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Mounting Position | HORIZONTAL |
| Valve Operation Method | AUTOMATIC |
| Valve Size | 8.000 INCHES IN |
| Maximum Operating Temp | 150.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Bolt Hole Quantity | 8 ALL ENDS |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Bolt Circle Nominal Diameter | 11.750 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Material | IRON CAST BODY |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Bolt Hole Nominal Diameter | 0.875 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material | COPPER ALLOY SEAT |
| Flange Face Design | PLAIN ALL ENDS |
| Face to Face Distance | 19.500 INCHES IN |
| Nominal Thickness | 0.938 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Nominal Outside Diameter | 13.500 INCHES ALL ENDS IN |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Connection Type | FLANGE ALL ENDS |
| Flow Control Device | DISK |
| Renewable Seat Ring Type | THREADED |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-273-9934 is a Valve,check, manufactured by Nibco Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-273-9934 has 8 cross-referenced part numbers: F-918-B (Nibco Inc), F-918-B8 (Nibco Inc), M928F (The Walworth Company), 928F (The Walworth Company), 928B (Nibco Inc) and 3 more.
There are 8 known substitutes for 4820-00-273-9934: 4820-00-273-9933, 4820-00-287-6010, 3020-00-366-0138 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for F-918-B8: Maximum Operating Temp: 450.0 FAHRENHEIT SINGLE RESPONSE DEGF; Mounting Position: HORIZONTAL; Valve Operation Method: AUTOMATIC; Valve Size: 8.000 INCHES IN. 24 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-273-9934 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.