| Item Name | Valve Check |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-251-6521 (002516521) |
| NCB Code | USA (00) |
| Manufacturer | Circor Aerospace Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| MEDA | Media For Which Designed | AIR 1ST RESPONSE |
| BBJX | Mounting Position | HORIZONTAL OR VERTICAL |
| CQGM | Maximum Operating Pressure | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| STYL | Style Designator | STRAIGHT THRU |
| AQLR | Valve Operation Method | AUTOMATIC |
| ADSU | Disk Loading Method | SPRING |
| AAJF | Thread Direction | RIGHT-HAND ALL ENDS |
| AEHZ | Maximum Operating Temp | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| CQJX | Nominal Thread Size | 0.375 INCHES ALL ENDS |
| AHNC | Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| AWLS | Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| MEDA | Media For Which Designed | FUEL/OIL, HYDROCARBON 2ND RESPONSE |
| MEDA | Media For Which Designed | WATER, FRESH 3RD RESPONSE |
| THSD | Thread Series Designator | NPT ALL ENDS |
| MATT | Material | STEEL OVERALL |
| ADQU | Flow Control Device | POPPET |
| MRC | Decoded Requirement | Clear Text Reply |
| Components Related to NSN - 4820-00-251-6521, 4820002516521 | ||||
| 4820-00-287-3034 (4820002873034) | 4820-01-271-7886 (4820012717886) | 4820-01-714-5468 (4820017145468) | 4810-00-936-0709 (4810009360709) | |
| 4820-01-190-3734 (4820011903734) | 4820-01-482-1507 (4820014821507) | 4820-00-145-2608 (4820001452608) | 4820-01-438-4316 (4820014384316) | |
| 4820-00-035-7597 (4820000357597) | 4820-00-417-3438 (4820004173438) | 4820-01-027-8834 (4820010278834) | 4820-01-301-8497 (4820013018497) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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