AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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) | 00-446-0449 (004460449) |
| NCB Code | USA (00) |
| Manufacturer | Stewart Avionics Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABPP | OPENING WIDTH | 0.815 INCHES NOMINAL BOTH ENDS |
| ABQK | END STYLE | RAISED HOOK BOTH ENDS |
| AGEK | SPRING FREE LENGTH | 4.541 INCHES MAXIMUM |
| APCN | COIL QUANTITY | 20-1/2 |
| APGF | DESIGN TYPE | CLOSED |
| ASZD | LOAD RATING | 50.00 POUNDS NOMINAL |
| AXLH | COIL HELIX DIRECTION | RIGHT-HAND OR LEFT-HAND |
| AXLP | SPRING DEFLECTION RATE | 101.000 POUNDS PER INCH NOMINAL |
| AXLQ | SPRING FREE OUTSIDE DIAMETER | 0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM |
| CSZP | SPRING LENGTH UNDER LOAD | 4.560 INCHES NOMINAL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A227-41 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR ASTM 229-41 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | VARNISH OVERALL |
| STYL | STYLE DESIGNATOR | CYLINDRICAL |
| Relevant Components for NSN - 5360-00-446-0449, 5360004460449 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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