AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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) | 00-937-2571 (009372571) |
| NCB Code | USA (00) |
| Manufacturer | Hamilton Sundstrand Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AATA | COUNTERSINK ANGLE IN DEG | 45.0 |
| AAWY | COUNTERBORE DIAMETER | 0.6410 INCHES NOMINAL |
| ABKW | OVERALL HEIGHT | 0.6050 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 0.7190 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.3090 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALME | MATERIAL HARDNESS RATING | 32.0 ROCKWELL C MINIMUM |
| APGF | DESIGN TYPE | SPLIT |
| AYRZ | COUNTERSINK DIAMETER | 0.3750 INCHES NOMINAL |
| BBRB | END DIAMETER | 0.4020 INCHES NOMINAL |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.2950 INCHES NOMINAL |
| BZDL | COUNTERBORE LENGTH | 0.2700 INCHES NOMINAL |
| BZMH | SPHERICAL SEAT TOP RADIUS | 0.3000 INCHES NOMINAL |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| STYL | STYLE DESIGNATOR | SEAT |
| ZZZV | FSC APPLICATION DATA | AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS |
| Relevant Components for NSN - 5340-00-937-2571, 5340009372571 | ||||
| 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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