| Item Name | Seat,Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-818-1048 (008181048) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Westinghouse Electric Corp |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 909D138-22 | northrop grumman systems corporation | seat,valve | 90099 | RFQ |
| 909D138-22 | westinghouse electric corp | seat,valve | 88657 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ADAS | BODY INSIDE DIAMETER | 0.688 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.312 NOMINAL INCHES |
| AJRM | UNDER FLANGE HEIGHT | 0.875 INCHES NOMINAL |
| AJSH | SEAL ACCOMMODATION TYPE | GROOVED |
| MATT | MATERIAL | ROD,WELDING,SURFACING FACE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-R-17131,TYPE MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FACE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| ABKK | FLANGE DIAMETER | 1.812 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 1.562 INCHES NOMINAL |
| AJFZ | SEAT RADIUS | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM |
| CQKM | SEATING SURFACE SHAPE | RADIAL |
| MATT | MATERIAL | STEEL BODY |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| Relevant Components for NSN - 4820-00-818-1048, 4820008181048 | ||||
| 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) | |
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