| Item Name | Spring Helical Extension |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5360 Coil Flat Leaf and Wire Springs |
| National Item Identification Number (NIIN) | 01-257-2608 (012572608) |
| NCB Code | USA (01) |
| Manufacturer | Northrop Grumman Systems Corporation, Standard Aero Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 0.390 INCHES NOMINAL |
| ABQK | END STYLE | SHORT TWISTED HOOK BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 1.612 INCHES NOMINAL |
| APCN | COIL QUANTITY | 18 |
| APGF | DESIGN TYPE | CLOSED |
| AXLH | COIL HELIX DIRECTION | RIGHT-HAND OR LEFT-HAND |
| AXLP | SPRING DEFLECTION RATE | 8.800 POUNDS PER INCH NOMINAL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 0.502 INCHES NOMINAL |
| AXMC | HOOK RADIUS | 0.195 INCHES NOMINAL BOTH ENDS |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-01-257-2608, 5360012572608 | ||||
| 5330-01-539-5629 (5330015395629) | 5305-01-517-2434 (5305015172434) | 5305-00-057-3980 (5305000573980) | 5325-01-082-8190 (5325010828190) | |
| 5305-99-254-4806 (5305992544806) | 5315-01-592-1130 (5315015921130) | 5330-00-561-7707 (5330005617707) | 5330-01-313-3034 (5330013133034) | |
| 5307-01-185-8617 (5307011858617) | 5330-01-648-9167 (5330016489167) | 5365-00-210-1895 (5365002101895) | 5315-01-061-2903 (5315010612903) | |
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