AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seat Helical Compression Spring |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5340 Hardware Commercial |
| National Item Identification Number (NIIN) | 00-914-8395 (009148395) |
| NCB Code | USA (00) |
| Manufacturer | Napco International Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 0.4370 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 1.3610 INCHES MINIMUM AND 1.3710 INCHES MAXIMUM |
| ABPS | FIRST STEP LENGTH | 0.1090 INCHES NOMINAL |
| ABPT | SECOND STEP DIAMETER | 1.7180 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.6540 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 30.0 |
| ALME | MATERIAL HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM |
| AMFZ | SECOND END DIAMETER | 1.2500 INCHES NOMINAL |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 0.8120 INCHES NOMINAL |
| BYYF | BORE TAPER IN DEG | 14.3 |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.1410 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | MAGNETIC PERMEABILITY SHALL BE LESS THAN 1.2 BEFORE FABRICATION AND NOT GREATER THAN 2.0 AFTER FABRICATION AS MEASURED IN A 200 OERSTED FIELD |
| MATT | MATERIAL | STEEL,AISI 4140 OR SAE 4140 |
| STYL | STYLE DESIGNATOR | SEAT |
| Relevant Components for NSN - 5340-00-914-8395, 5340009148395 | ||||
| 5355-00-582-7370 (5355005827370) | 5340-01-492-4288 (5340014924288) | 5340-00-523-3711 (5340005233711) | 5330-01-275-9444 (5330012759444) | |
| 5340-01-238-2053 (5340012382053) | 5365-01-693-2245 (5365016932245) | 5331-01-258-8240 (5331012588240) | 5365-01-672-1629 (5365016721629) | |
| 5365-01-432-4280 (5365014324280) | 5365-01-654-1906 (5365016541906) | 5340-01-451-0804 (5340014510804) | 5340-01-489-6012 (5340014896012) | |
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