| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 00-211-8488 (002118488) |
| NCB Code | USA (00) |
| Manufacturer | Hi Shear Corporation, Boeing Company The, Huck International Inc, Sps Technologies Inc, Alcoa Global Fasteners Inc, Lisi Aerospace Canada Corp, Alcoa Fastening Systems Ltd, Satair Usa Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 3M50-4-9 | hi shear corporation | screw shoulder | 73197 | RFQ |
| 3M50-4-9 | boeing company the | screw shoulder | 76301 | RFQ |
| 3M50-4-9 | huck international inc | screw shoulder | 17446 | RFQ |
| 3M50-4-9 | sps technologies inc | screw shoulder | 56878 | RFQ |
| 3M50-4-9 | alcoa global fasteners inc | screw shoulder | 06950 | RFQ |
| 3M50-4-9 | lisi aerospace canada corp | screw shoulder | l4528 | RFQ |
| 54267-4-9 | sps technologies inc | screw shoulder | 56878 | RFQ |
| HT409A4-9 | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| HT409A4-9 | alcoa fastening systems ltd | screw shoulder | c4293 | RFQ |
| HT41UA9 | alcoa fastening systems ltd | screw shoulder | c4293 | RFQ |
| HT41UA9 | satair usa inc | screw shoulder | r1120 | RFQ |
| HT41UA9 | hi shear corporation | screw shoulder | 73197 | RFQ |
| HTS501-4-9 | huck international inc | screw shoulder | 17446 | RFQ |
| 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 | 1.015 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2641 INCHES MINIMUM FIRST SHOULDER AND 0.2651 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.485 INCHES MINIMUM FIRST SHOULDER AND 0.507 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 | 100.0 DEGREES NOMINAL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | FURNISHED WITH SILICONE RUBBER O-RING |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 3-52,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 3-52,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Components Related to NSN - 5305-00-211-8488, 5305002118488 | ||||
| 5315-01-076-2969 (5315010762969) | 5325-00-543-3429 (5325005433429) | 5340-00-196-3675 (5340001963675) | 5360-01-424-6607 (5360014246607) | |
| 5310-00-084-4232 (5310000844232) | 5365-01-532-4588 (5365015324588) | 5340-01-654-3113 (5340016543113) | 5305-01-143-8635 (5305011438635) | |
| 5340-01-332-8256 (5340013328256) | 5360-00-558-5147 (5360005585147) | 5306-01-234-3071 (5306012343071) | 5305-01-175-6588 (5305011756588) | |
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