| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-273-9903 (002739903) |
| NCB Code | USA (00) |
| Manufacturer | The Walworth Company, Lunkenheimer Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| CCFG | VALVE SIZE | 2.500 INCHES |
| CQGM | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 7.500 INCHES ALL ENDS |
| CWCF | FACE TO FACE DISTANCE | 11.500 INCHES |
| CWCK | NOMINAL THICKNESS | 1.000 INCHES ALL ENDS |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.875 INCHES ALL ENDS |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 3.000 INCHES ALL ENDS |
| CWDF | FLANGE FACE DESIGN | RAISED STRAIGHT ALL ENDS |
| CWDH | RAISED FACE NOMINAL HEIGHT | 0.062 INCHES ALL ENDS |
| CWDL | RAISED FACE NOMINAL DIAMETER | 4.125 INCHES ALL ENDS |
| FEAT | SPECIAL FEATURES | SWING CHECK TYPE |
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| MATT | MATERIAL | STEEL UNS J03002 BODY |
| MATT | MATERIAL | STEEL UNS J03002 FLOW CONTROL DEVICE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MEDA | MEDIA FOR WHICH DESIGNED | OIL,HYDRAULIC 1ST RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | STEAM 2ND RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER,FRESH 3RD RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
| TEST | TEST DATA DOCUMENT | 05047-ASAB16.5 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS,INDIVIDUAL MANUFACTUREER STANDARDS,ETC.). |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADZH | RENEWABLE SEAT RING TYPE | THREADED |
| AECS | BOLT HOLE QUANTITY | 8 ALL ENDS |
| AEHZ | MAXIMUM OPERATING TEMP | 750.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| Relevant Components for NSN - 4820-00-273-9903, 4820002739903 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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