| 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) | 00-664-6810 (006646810) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 1.031 INCHES NOMINAL |
| ABPP | OPENING WIDTH | 0.625 INCHES NOMINAL BOTH ENDS |
| ABQK | END STYLE | RAISED HOOK BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 7.074 INCHES NOMINAL |
| APCN | COIL QUANTITY | 28 |
| APGF | DESIGN TYPE | CLOSED |
| ASZD | LOAD RATING | 117.80 POUNDS MINIMUM AND 138.10 POUNDS MAXIMUM |
| AXLH | COIL HELIX DIRECTION | RIGHT-HAND |
| AXLP | SPRING DEFLECTION RATE | 20.800 POUNDS PER INCH NOMINAL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 1.355 INCHES NOMINAL |
| AXMC | HOOK RADIUS | 0.500 INCHES NOMINAL BOTH ENDS |
| CSZP | SPRING LENGTH UNDER LOAD | 12.750 INCHES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-00-664-6810, 5360006646810 | ||||
| 5315-01-392-6539 (5315013926539) | 5305-00-370-0922 (5305003700922) | 5330-00-108-1053 (5330001081053) | 5305-00-282-3260 (5305002823260) | |
| 5310-00-825-0783 (5310008250783) | 5365-01-200-6930 (5365012006930) | 5340-01-352-9365 (5340013529365) | 5330-01-231-5219 (5330012315219) | |
| 5331-01-452-9668 (5331014529668) | 5305-00-151-8683 (5305001518683) | 5320-00-323-6041 (5320003236041) | 5330-00-516-3829 (5330005163829) | |
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