| 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) | 00-977-2454 (009772454) |
| NCB Code | USA (00) |
| Manufacturer | Eaton Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAWY | COUNTERBORE DIAMETER | 0.8120 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 0.4320 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM |
| ABPR | FIRST STEP DIAMETER | 1.0620 INCHES NOMINAL |
| ABPS | FIRST STEP LENGTH | 0.1620 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.6240 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM |
| ALME | MATERIAL HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| AMFZ | SECOND END DIAMETER | 0.9150 INCHES MINIMUM AND 0.9200 INCHES MAXIMUM |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 0.7810 INCHES NOMINAL |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.1200 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM |
| BZDL | COUNTERBORE LENGTH | 0.2200 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | NOT CASEHARDENED |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| STYL | STYLE DESIGNATOR | SEAT |
| Components Related to NSN - 5340-00-977-2454, 5340009772454 | ||||
| 5325-01-017-8809 (5325010178809) | 5330-01-278-3019 (5330012783019) | 5365-01-304-3832 (5365013043832) | 5305-15-060-1487 (5305150601487) | |
| 5305-01-361-3193 (5305013613193) | 5330-01-259-4088 (5330012594088) | 5340-01-672-8342 (5340016728342) | 5342-00-452-9798 (5342004529798) | |
| 5310-01-175-0629 (5310011750629) | 5330-01-120-4149 (5330011204149) | 5331-01-441-4577 (5331014414577) | 5330-01-425-8795 (5330014258795) | |
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