| Item Name | Seat Helical Compression Spring |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5340 Hardware Commercial |
| National Item Identification Number (NIIN) | 01-024-4559 (010244559) |
| NCB Code | USA (01) |
| Manufacturer | Stanadyne Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AATE | CHAMFER ANGLE IN DEG | 20.0 |
| ABKW | OVERALL HEIGHT | 0.1370 INCHES MINIMUM AND 0.1430 INCHES MAXIMUM |
| ABPR | FIRST STEP DIAMETER | 0.2630 INCHES MINIMUM AND 0.2680 INCHES MAXIMUM |
| ALME | MATERIAL HARDNESS RATING | 60.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 0.1340 INCHES MINIMUM AND 0.1370 INCHES MAXIMUM |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.0940 INCHES MINIMUM AND 0.0950 INCHES MAXIMUM |
| BZMH | SPHERICAL SEAT TOP RADIUS | 0.0100 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMPOSITION 52100 |
| Relevant Components for NSN - 5340-01-024-4559, 5340010244559 | ||||
| 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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