| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-975-7128 (009757128) |
| NCB Code | USA (00) |
| Manufacturer | Woodward Hrt Inc, Marine Diesel Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.434 INCHES MINIMUM AND 0.436 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 0.250 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
| AJSG | SEAT ANGLE IN DEG | 90.000 NOMINAL |
| CQFM | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM OVERALL AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.124 INCHES MINIMUM FIRST STEP AND 0.126 INCHES MAXIMUM FIRST STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.250 INCHES NOMINAL SECOND STEP |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN |
| Components Related to NSN - 4820-00-975-7128, 4820009757128 | ||||
| 4820-01-251-8056 (4820012518056) | 4820-01-422-5097 (4820014225097) | 4810-00-280-2146 (4810002802146) | 4810-00-288-7539 (4810002887539) | |
| 4810-99-188-5410 (4810991885410) | 4820-01-221-1622 (4820012211622) | 4820-01-426-3375 (4820014263375) | 4820-01-363-2087 (4820013632087) | |
| 4810-01-408-9999 (4810014089999) | 4820-01-192-3568 (4820011923568) | 4820-00-997-9937 (4820009979937) | 4810-01-424-8304 (4810014248304) | |
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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