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Quality guaranteed We sell only warrantied and traceable partsMfg Part Number: 55979-4-16
Alternate P/N: 55979416
NSN : 5305-00-227-1263
NIIN : 002271263
CAGE Code : 73197
Manufacturer: Hi Shear Corporation
Item Name : Screw Shoulder
FSC : 5305 Screws
In our inventory, we have more than two billion new and obsolete NSN part like 55979-4-16. Aviation Sphere can offer an impressive selection of NSN parts. This includes parts like 55979-4-16 Screw Shoulder from manufacturer Hi Shear Corporation and many more, all of which are available with short lead times and competitive prices. For parts not in our inventory, our dedicated account managers can help you track them down through our international supply chain network that extends across the United States, Canada, and the United Kingdom. Furthermore, Aviation Sphere is an AS9120B, ISO 9001:2015, and FAA AC 0056B accredited business, as well as the only independent distributor with a strict No China Sourcing Pledge, allowing us to ensure that each part part like 55979-4-16, you purchase from us is fully traceable or comes directly from its manufacturer.
Our website offers a number of parametric search capabilities, one of which allows you to search specifically for NSN part like 55979-4-16. This means you can quickly sort through National Stock Numbers such as 5305002271263 and find parts from quality manufacturers like Hi Shear Corporation and many others. To begin the purchasing process immediately, submit an RFQ today. Our team of dedicated account managers is standing by and will respond to all inquiries in 15 minutes or less.
| NSN | FSC | NIIN | CLS | Hazmat | DEMIL | Cancelled NSN |
|---|---|---|---|---|---|---|
| 5305-00-227-1263 Item Description: Screw Shoulder | 5305 | 002271263 | 0 | N | A | |
| CIIC | HCC | ESD | PMIC | Criticality | ENAC | |
| U | A | A | 0 | |||
| Part Number | ISC | RNVC | RNCC | HCC | MSDS | SADC |
| 55979-4-16 | 5 | 2 | 3 |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.443 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.453 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.280 INCHES MINIMUM AND 0.281 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.895 INCHES MINIMUM AND 0.917 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQFM | HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| CRSQ | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| CXCY | III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| MATT | MATERIAL | IRON ALLOY 660 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
 |
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