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| 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) | 01-142-4377 (011424377) |
| NCB Code | USA (01) |
| Manufacturer | Nimikkeistokeskus Ncb Finland, Meggitt International Ltd |
| MRC | Criteria | Characteristic |
|---|---|---|
| BBRB | END DIAMETER | 0.2640 INCHES MINIMUM AND 0.2740 INCHES MAXIMUM |
| APGF | DESIGN TYPE | SOLID |
| ABXV | BORE DIAMETER | 0.1900 INCHES MINIMUM AND 0.2000 INCHES MAXIMUM |
| ABPR | FIRST STEP DIAMETER | 0.4000 INCHES MINIMUM AND 0.4300 INCHES MAXIMUM |
| SURF | SURFACE TREATMENT | PASSIVATED, QQ-P-35, TYPE 2 |
| ALME | MATERIAL HARDNESS RATING | NOT RATED |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.0650 INCHES MINIMUM AND 0.0710 INCHES MAXIMUM |
| MATL | MATERIAL | STEEL, QQ-S-763, CLASS 304 |
| ABKW | OVERALL HEIGHT | 0.0830 INCHES MINIMUM AND 0.0930 INCHES MAXIMUM |
| STYL | STYLE DESIGNATOR | SEAT |
| FEAT | SPECIAL FEATURES | NOT CASEHARDENED |
| Relevant Components for NSN - 5340-01-142-4377, 5340011424377 | ||||
| 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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