| 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) | 00-321-6470 (003216470) |
| NCB Code | USA (00) |
| Manufacturer | Finning Uk Ltd, Mack Trucks Inc, Caterpillar Inc, Bendix Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 0.415 INCHES MINIMUM AND 0.443 INCHES MAXIMUM |
| ABPP | OPENING WIDTH | 0.590 INCHES NOMINAL BOTH ENDS |
| ABQK | END STYLE | MACHINE LOOP BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 3.832 INCHES NOMINAL |
| APCN | COIL QUANTITY | 17-1/2 |
| APGF | DESIGN TYPE | CLOSED |
| ASZD | LOAD RATING | 40.00 POUNDS NOMINAL |
| AXLH | COIL HELIX DIRECTION | RIGHT-HAND OR LEFT-HAND |
| AXLP | SPRING DEFLECTION RATE | 66.400 POUNDS PER INCH NOMINAL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 0.630 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| AXMC | HOOK RADIUS | 0.190 INCHES NOMINAL BOTH ENDS |
| CSZP | SPRING LENGTH UNDER LOAD | 3.947 INCHES NOMINAL |
| CXTJ | COIL TO HOOK INSIDE LENGTH | 0.810 INCHES NOMINAL BOTH ENDS |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-428,TYPE 1 OR 2 /D/ FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | ENAMEL OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | TT-E-489 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-00-321-6470, 5360003216470 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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