| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-268-8786 (002688786) |
| NCB Code | USA (00) |
| Manufacturer | National Instruments Corporation, Military Specifications |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | POPPET |
| AECS | BOLT HOLE QUANTITY | 6 ALL ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| BBJX | MOUNTING POSITION | VERTICAL |
| CQGM | MAXIMUM OPERATING PRESSURE | 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 6.125 INCHES ALL ENDS |
| CWCK | NOMINAL THICKNESS | 0.500 INCHES ALL ENDS |
| CWCL | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 6.000 INCHES |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES ALL ENDS |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 5.000 INCHES ALL ENDS |
| CWDF | FLANGE FACE DESIGN | PLAIN ALL ENDS |
| FEAT | SPECIAL FEATURES | BRONZE DISK,QQ-C-390,FACED W/NICKEL COPPER ALLOY,QQ-N-281 OR QQ-N-288 NOT LESS THAN 1/8 IN.THK |
| MATT | MATERIAL | COPPER ALLOY 903 BODY |
| MATT | MATERIAL | COPPER ALLOY 903 SEAT |
| MATT | MATERIAL | NICKEL ALLOY FLOW CONTROL DEVICE OR COPPER ALLOY FLOW CONTROL DEVICE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,ALLOY D5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,ALLOY D5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE AND QQ-N-281 FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE AND QQ-N-288 FED SPEC 3RD MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER,FRESH 2ND RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | B TYPE AND 1 CLASS |
| Relevant Components for NSN - 4820-00-268-8786, 4820002688786 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
Request for Quote
