The Valve,check, cataloged under National Stock Number 4820-00-273-9933, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-273-9933 |
| Primary Part Number | 373-6 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crane Co Div Valve Div |
| Status | CANCELLED |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Nominal Outside Diameter | 11.000 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Material Document and Classification | ASTM B-62(B) ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Face to Face Distance | 14.000 INCHES IN |
| Material Document and Classification | ASTMA-126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Thickness | 1.000 INCHES ALL ENDS IN |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Mounting Position | HORIZONTAL |
| Connection Type | FLANGE ALL ENDS |
| Material | IRON CAST UNS F12102 BODY |
| Valve Operation Method | AUTOMATIC |
| Bolt Hole Quantity | 8 ALL ENDS |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Valve Size | 6.000 INCHES IN |
| Bolt Hole Nominal Diameter | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Material | COPPER ALLOY 836 FLOW CONTROL DEVICE |
| Flange Face Design | PLAIN ALL ENDS |
| Maximum Operating Temp | 450.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Bolt Circle Nominal Diameter | 9.500 INCHES ALL ENDS IN |
| Maximum Operating Temp | 150.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | COPPER ALLOY 836 SEAT |
| Renewable Seat Ring Type | THREADED |
| Material Document and Classification | ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-273-9933 is a Valve,check, manufactured by Crane Co Div Valve Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-273-9933 has 5 cross-referenced part numbers: 928F (Walworth Co Marine Div), 373-6 (Crane Co Div Valve Div), F918B (Nibco Inc), F918B-6IN (Nibco Inc), 928F (The Walworth Company).
There are 11 known substitutes for 4820-00-273-9933: 5945-00-063-9013, 2940-00-137-2023, 5955-00-173-2646 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 373-6: Style Designator: STRAIGHT THRU FLANGED ENDS; Nominal Outside Diameter: 11.000 INCHES ALL ENDS IN; Flow Control Device: DISK; Material Document and Classification: ASTM B-62(B) ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE. 28 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-273-9933 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.