| 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) | 01-180-0637 (011800637) |
| NCB Code | USA (01) |
| Manufacturer | Coltec Industries Inc, Fairbanks Morse Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 3.3900 INCHES NOMINAL |
| ABPT | SECOND STEP DIAMETER | 4.3300 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 1.2580 INCHES NOMINAL |
| AMFZ | SECOND END DIAMETER | 2.2800 INCHES NOMINAL |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 1.9600 INCHES NOMINAL |
| BYYF | BORE TAPER IN DEG | 7.0 |
| BZMH | SPHERICAL SEAT TOP RADIUS | 0.0800 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | LUBRICATION PASSAGE HOLE FROM SPRING SEAT SURFACE TO BORE |
| MATT | MATERIAL | STEEL COMP 1045 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 1045 ASSN STD SINGLE MATERIAL RESPONSE |
| Components Related to NSN - 5340-01-180-0637, 5340011800637 | ||||
| 5330-00-154-7423 (5330001547423) | 5365-01-326-1135 (5365013261135) | 5306-01-053-6961 (5306010536961) | 5310-00-523-2141 (5310005232141) | |
| 5325-01-240-1213 (5325012401213) | 5360-01-089-4004 (5360010894004) | 5330-01-089-6878 (5330010896878) | 5330-01-125-9042 (5330011259042) | |
| 5365-01-447-3568 (5365014473568) | 5340-00-967-7591 (5340009677591) | 5305-00-733-6616 (5305007336616) | 5310-01-278-4520 (5310012784520) | |
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