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) | 00-301-3984 (003013984) |
| NCB Code | USA (00) |
| Manufacturer | Sasco Inc, Diamond Reo Trucks Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AATA | COUNTERSINK ANGLE IN DEG | 45.0 |
| AATE | CHAMFER ANGLE IN DEG | 5.0 |
| ABKW | OVERALL HEIGHT | 0.6393 INCHES MINIMUM AND 0.6643 INCHES MAXIMUM |
| ABPR | FIRST STEP DIAMETER | 1.3100 INCHES MINIMUM AND 1.3200 INCHES MAXIMUM |
| ABPS | FIRST STEP LENGTH | 0.0800 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM |
| ABPT | SECOND STEP DIAMETER | 1.7500 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.6520 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 60.0 |
| ALME | MATERIAL HARDNESS RATING | 85.5 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| AMFZ | SECOND END DIAMETER | 1.5000 INCHES NOMINAL |
| APGF | DESIGN TYPE | SOLID |
| BYYF | BORE TAPER IN DEG | 15.0 |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.4568 INCHES MINIMUM AND 0.4668 INCHES MAXIMUM |
| BZDL | COUNTERBORE LENGTH | 0.0625 INCHES NOMINAL |
| CBBL | FEATURES PROVIDED | CASEHARDENED |
| MATT | MATERIAL | STEEL |
| STYL | STYLE DESIGNATOR | SEAT |
| Relevant Components for NSN - 5340-00-301-3984, 5340003013984 | ||||
| 5365-00-981-3580 (5365009813580) | 5306-01-663-0372 (5306016630372) | 5330-00-259-1415 (5330002591415) | 5340-00-140-8006 (5340001408006) | |
| 5310-01-055-6080 (5310010556080) | 5340-01-571-9066 (5340015719066) | 5360-01-528-5575 (5360015285575) | 5340-01-254-4525 (5340012544525) | |
| 5310-01-456-0920 (5310014560920) | 5331-01-311-6975 (5331013116975) | 5330-00-147-6676 (5330001476676) | 5365-01-201-0770 (5365012010770) | |
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