| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-186-4719 (011864719) |
| NCB Code | USA (01) |
| Manufacturer | Allison Transmission Inc, Rolls Royce Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.662 INCHES MINIMUM AND 0.663 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM |
| AJFZ | SEAT RADIUS | 0.218 INCHES NOMINAL |
| CQKM | SEATING SURFACE SHAPE | RADIAL |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN |
| Components Related to NSN - 4820-01-186-4719, 4820011864719 | ||||
| 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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