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) | 00-763-1021 (007631021) |
| NCB Code | USA (00) |
| Manufacturer | Eaton Aerospace Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 0.2220 INCHES MINIMUM AND 0.2250 INCHES MAXIMUM |
| ABPR | FIRST STEP DIAMETER | 0.4940 INCHES MINIMUM AND 0.4960 INCHES MAXIMUM |
| APGF | DESIGN TYPE | SOLID |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.1550 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM |
| ALME | MATERIAL HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM |
| BBRB | END DIAMETER | 0.2500 INCHES MINIMUM AND 0.2540 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | MATL-STEEL QQ-S-625,COMP 4150;NOT CASEHARDENED |
| MATT | MATERIAL | STEEL |
| Relevant Components for NSN - 5340-00-763-1021, 5340007631021 | ||||
| 5305-00-825-1285 (5305008251285) | 5315-01-177-1845 (5315011771845) | 5340-01-536-0624 (5340015360624) | 5330-01-398-3824 (5330013983824) | |
| 5365-00-602-2520 (5365006022520) | 5340-01-658-6711 (5340016586711) | 5306-00-488-7520 (5306004887520) | 5310-00-443-4905 (5310004434905) | |
| 5305-00-579-4230 (5305005794230) | 5306-01-488-3599 (5306014883599) | 5340-01-429-0378 (5340014290378) | 5305-01-208-9074 (5305012089074) | |
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