| 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 |
| Components Related to NSN - 4820-00-818-1048, 4820008181048 | ||||
| 4820-00-768-0509 (4820007680509) | 4820-01-572-6332 (4820015726332) | 4810-01-388-5111 (4810013885111) | 4820-00-001-1674 (4820000011674) | |
| 4820-01-417-3999 (4820014173999) | 4820-00-988-9195 (4820009889195) | 4820-01-651-5916 (4820016515916) | 4810-01-291-5811 (4810012915811) | |
| 4820-01-382-3164 (4820013823164) | 4820-01-070-6082 (4820010706082) | 4820-01-363-1911 (4820013631911) | 4820-01-312-8350 (4820013128350) | |
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