| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-145-9176 (011459176) |
| NCB Code | USA (01) |
| Manufacturer | Lisi Aerospace Canada Corp, Sps Technologies Inc, Hi Shear Corporation, Huck International Inc, Alcoa Global Fasteners Inc, Boeing Company The, Fastener Innovation Technology Inc, West Coast Aerospace Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| HT4016-4-51Y | lisi aerospace canada corp | screw shoulder | l4528 | RFQ |
| HT4016-4-51Y | sps technologies inc | screw shoulder | 80539 | RFQ |
| HT4016-4-51Y | hi shear corporation | screw shoulder | 73197 | RFQ |
| HT4016-4-51Y | huck international inc | screw shoulder | 97928 | RFQ |
| HT4016-4-51Y | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| ST3M506-4-51-1 | alcoa global fasteners inc | screw shoulder | 06950 | RFQ |
| ST3M506-4-51-1 | boeing company the | screw shoulder | 76301 | RFQ |
| ST3M506-4-51-1 | fastener innovation technology inc | screw shoulder | 58998 | RFQ |
| ST3M506-4-51-1 | huck international inc | screw shoulder | 17446 | RFQ |
| ST3M506-4-51-1 | west coast aerospace inc | screw shoulder | 60516 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.372 INCHES MINIMUM AND 0.422 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 3.570 INCHES MINIMUM AND 3.600 INCHES MAXIMUM |
| AASK | HEAD STYLE | OVAL COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.4208 INCHES MINIMUM AND 0.4258 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2802 INCHES MINIMUM FIRST SHOULDER AND 0.2807 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 3.114 INCHES MINIMUM FIRST SHOULDER AND 3.142 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | INTERNAL HEXAGON SOCKET IN THREADED END 0.0947 IN. MIN AND 0.0967 IN. MAX WIDTH ACROSS FLATS |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Components Related to NSN - 5305-01-145-9176, 5305011459176 | ||||
| 5330-01-334-7310 (5330013347310) | 5365-00-969-6150 (5365009696150) | 5310-01-669-3902 (5310016693902) | 5340-01-413-2057 (5340014132057) | |
| 5325-00-364-9598 (5325003649598) | 5360-00-567-5070 (5360005675070) | 5340-01-491-4788 (5340014914788) | 5340-01-026-3025 (5340010263025) | |
| 5365-01-155-7183 (5365011557183) | 5355-00-492-8457 (5355004928457) | 5365-00-145-1236 (5365001451236) | 5307-00-245-8721 (5307002458721) | |
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