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 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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