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| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-049-3383 (010493383) |
| NCB Code | USA (01) |
| Manufacturer | Velan Valve Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.500 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 0.351 INCHES MINIMUM AND 0.354 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 0.250 INCHES MINIMUM AND 0.257 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.328 INCHES MINIMUM AND 0.329 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.218 INCHES MINIMUM AND 0.229 INCHES MAXIMUM |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| MATT | MATERIAL | STEEL COMP 410 BODY |
| MATT | MATERIAL | STEEL COMP STELLITE NO. 5 FACE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A276 ASSN STD 1ST MATERIAL RESPONSE BODY OR ASTM-A479 ASSN STD 1ST MATERIAL RESPONSE BODY |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-01-049-3383, 4820010493383 | ||||
| 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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