| 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) | 00-453-8211 (004538211) |
| NCB Code | USA (00) |
| Manufacturer | Parker Hannifin Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAWY | COUNTERBORE DIAMETER | 0.8210 INCHES MINIMUM AND 0.8250 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 0.3500 INCHES NOMINAL |
| ABPR | FIRST STEP DIAMETER | 1.2300 INCHES MINIMUM AND 1.2400 INCHES MAXIMUM |
| ABPS | FIRST STEP LENGTH | 0.2520 INCHES MINIMUM AND 0.4520 INCHES MAXIMUM |
| ABPT | SECOND STEP DIAMETER | 1.4950 INCHES MINIMUM AND 1.5050 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 0.7430 INCHES MINIMUM AND 0.7470 INCHES MAXIMUM |
| APGF | DESIGN TYPE | SOLID |
| BBRB | END DIAMETER | 0.8210 INCHES MINIMUM AND 0.8250 INCHES MAXIMUM |
| BZDH | DISTANCE FROM END TO FIRST STEP | 0.1270 INCHES MINIMUM AND 0.5770 INCHES MAXIMUM |
| BZDL | COUNTERBORE LENGTH | 0.0500 INCHES NOMINAL |
| MATT | MATERIAL | STEEL COMP 416 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE |
| STYL | STYLE DESIGNATOR | SEAT |
| Relevant Components for NSN - 5340-00-453-8211, 5340004538211 | ||||
| 5340-01-621-1479 (5340016211479) | 5365-00-381-4908 (5365003814908) | 5355-01-573-0404 (5355015730404) | 5330-01-580-7284 (5330015807284) | |
| 5305-01-282-1451 (5305012821451) | 5330-01-361-5513 (5330013615513) | 5340-00-611-7621 (5340006117621) | 5320-01-615-4000 (5320016154000) | |
| 5310-01-334-3643 (5310013343643) | 5330-01-327-5730 (5330013275730) | 5325-00-763-5757 (5325007635757) | 5340-01-576-0345 (5340015760345) | |
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