| 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) | 01-144-1789 (011441789) |
| NCB Code | USA (01) |
| Manufacturer | Lee Spring Co Inc, Extel Corp, Barnes Group Inc, Northrop Grumman Systems Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| LE-026B-4SS | lee spring co inc | spring helical extension | 84830 | RFQ |
| 18153 | extel corp | spring helical extension | 52247 | RFQ |
| E0180-026-1370-S | barnes group inc | spring helical extension | 70472 | RFQ |
| 887B050869 | northrop grumman systems corporation | spring helical extension | 03956 | RFQ |
| LE-026B-4 | lee spring co inc | spring helical extension | 84830 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 0.136 INCHES NOMINAL |
| ABQK | END STYLE | SHORT TWISTED HOOK BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 1.427 INCHES NOMINAL |
| APGF | DESIGN TYPE | CLOSED |
| ASZD | LOAD RATING | 3.581 POUNDS MAXIMUM |
| AXLH | COIL HELIX DIRECTION | LEFT-HAND |
| AXLP | SPRING DEFLECTION RATE | 3.332 POUNDS PER INCH NOMINAL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 0.188 INCHES NOMINAL |
| AXMC | HOOK RADIUS | 0.068 INCHES NOMINAL BOTH ENDS |
| MATT | MATERIAL | STEEL COMP 302 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OVERALL OR AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-01-144-1789, 5360011441789 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
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