| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-420-8445 (004208445) |
| NCB Code | USA (00) |
| Manufacturer | Droitcour Company |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
| ADAR | BODY OUTSIDE DIAMETER | 0.154 INCHES MINIMUM AND 0.157 INCHES MAXIMUM |
| ADAS | BODY INSIDE DIAMETER | 0.066 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| AGAV | END ITEM IDENTIFICATION | 16508789158,A-7D |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.058 INCHES MINIMUM AND 0.063 INCHES MAXIMUM |
| AJSH | SEAL ACCOMMODATION TYPE | RECESSED |
| CQFM | HARDNESS RATING | 56.0 ROCKWELL C MINIMUM OVERALL AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| MATT | MATERIAL | STEEL COMP 440C OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5630 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN FLANGED |
| ZZZV | FSC APPLICATION DATA | ACFT HYDRAULIC SYSTEM |
| Components Related to NSN - 4820-00-420-8445, 4820004208445 | ||||
| 4820-01-279-1339 (4820012791339) | 4820-01-250-8611 (4820012508611) | 4810-01-039-5970 (4810010395970) | 4820-01-284-4289 (4820012844289) | |
| 4820-01-671-6098 (4820016716098) | 4820-00-287-2199 (4820002872199) | 4820-01-277-6509 (4820012776509) | 4820-01-178-7551 (4820011787551) | |
| 4820-01-064-2440 (4820010642440) | 4820-00-391-3785 (4820003913785) | 4820-00-066-2358 (4820000662358) | 4820-01-197-6798 (4820011976798) | |
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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