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| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-057-3218 (010573218) |
| NCB Code | USA (01) |
| Manufacturer | National Oilwell Varco Inc, Electric Boat Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 2621-927-11ASSY1C | national oilwell varco inc | valve check | RFQ |
| 2621-927-11ASSY1C | electric boat corporation | valve check | RFQ |
| 2620-927X11-ASS | electric boat corporation | valve check | RFQ |
| 2620-927X11-ASSY6C-1IN | electric boat corporation | valve check | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | WEIGHT |
| AECS | BOLT HOLE QUANTITY | 4 ALL ENDS |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ROUND WITH HOLES ALL ENDS |
| AWLS | CONNECTION TYPE | FLANGE ALL ENDS |
| BBJX | MOUNTING POSITION | HORIZONTAL OR VERTICAL |
| CCFG | VALVE SIZE | 1.000 INCHES |
| CQGM | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CWCD | NOMINAL OUTSIDE DIAMETER | 4.875 INCHES ALL ENDS |
| CWCF | FACE TO FACE DISTANCE | 8.000 INCHES |
| CWCK | NOMINAL THICKNESS | 0.688 INCHES ALL ENDS |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | 0.750 INCHES ALL ENDS |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | 3.500 INCHES ALL ENDS |
| CWDF | FLANGE FACE DESIGN | PLAIN ALL ENDS |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A351,GRADE CF8M ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS |
| Relevant Components for NSN - 4820-01-057-3218, 4820010573218 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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