| 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) | 00-831-1131 (008311131) |
| NCB Code | USA (00) |
| Manufacturer | Cooper Cameron Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AATA | COUNTERSINK ANGLE IN DEG | 30.0 |
| AATE | CHAMFER ANGLE IN DEG | 60.0 |
| AAWY | COUNTERBORE DIAMETER | 1.6880 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 1.0000 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 2.0625 INCHES NOMINAL |
| ABPT | SECOND STEP DIAMETER | 2.6875 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 1.0625 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 37.0 |
| AMFZ | SECOND END DIAMETER | 2.5625 INCHES NOMINAL |
| AYRZ | COUNTERSINK DIAMETER | 1.7187 INCHES NOMINAL |
| BBRB | END DIAMETER | 1.1250 INCHES NOMINAL |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.5625 INCHES NOMINAL |
| MATT | MATERIAL | STEEL |
| STYL | STYLE DESIGNATOR | SEAT |
| ABPS | FIRST STEP LENGTH | 0.2500 INCHES NOMINAL |
| APGF | DESIGN TYPE | SOLID |
| BYYF | BORE TAPER IN DEG | 10.0 |
| Relevant Components for NSN - 5340-00-831-1131, 5340008311131 | ||||
| 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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