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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) | 01-129-8518 (011298518) |
| NCB Code | USA (01) |
| Manufacturer | Nimikkeistokeskus Ncb Finland, Eaton Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 0.4170 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 0.3280 INCHES NOMINAL |
| ABPS | FIRST STEP LENGTH | 0.0600 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.1250 INCHES NOMINAL |
| ALME | MATERIAL HARDNESS RATING | 57.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| AMFZ | SECOND END DIAMETER | 0.2100 INCHES NOMINAL |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 0.3280 INCHES NOMINAL |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.2520 INCHES NOMINAL |
| BZMH | SPHERICAL SEAT TOP RADIUS | 0.0630 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | NOT CASEHARDENED |
| MATT | MATERIAL | STEEL COMP 440C |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PS13001,MCDONNELL DOUGLAS CORP MFR REF SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | SEAT |
| Relevant Components for NSN - 5340-01-129-8518, 5340011298518 | ||||
| 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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