| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-142-4875 (011424875) |
| NCB Code | USA (01) |
| Manufacturer | Boeing Company The, Brooks Instrument Llc, Alcoa Global Fasteners Inc, Lisi Aerospace Canada Corp, Reid Products Inc, Sps Technologies Inc, Hi Shear Corporation, Mecair Aerospace Industries Inc, Huck International Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST3M495-3-18-1 | boeing company the | screw shoulder | RFQ |
| HT4016-3-18X | brooks instrument llc | screw shoulder | RFQ |
| HT4016-3-18X | alcoa global fasteners inc | screw shoulder | RFQ |
| HT4016-3-18X | lisi aerospace canada corp | screw shoulder | RFQ |
| 11911-3-18-1 | reid products inc | screw shoulder | RFQ |
| HT4016-3-18X | sps technologies inc | screw shoulder | RFQ |
| HT4016-3-18X | hi shear corporation | screw shoulder | RFQ |
| ST3M495-3-18-1 | mecair aerospace industries inc | screw shoulder | RFQ |
| ST3M495-3-18-1 | alcoa global fasteners inc | screw shoulder | RFQ |
| HT4016-3-18X | huck international inc | screw shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.305 INCHES MINIMUM AND 0.362 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 1.440 INCHES MINIMUM AND 1.487 INCHES MAXIMUM |
| AASK | HEAD STYLE | OVAL COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2021 INCHES MINIMUM FIRST SHOULDER AND 0.2026 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.080 INCHES MINIMUM FIRST SHOULDER AND 1.099 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-142-4875, 5305011424875 | ||||
| 5320-01-318-6843 (5320013186843) | 5340-01-557-4760 (5340015574760) | 5340-00-336-3776 (5340003363776) | 5340-01-560-8528 (5340015608528) | |
| 5330-01-684-2979 (5330016842979) | 5310-01-185-8686 (5310011858686) | 5360-00-394-4491 (5360003944491) | 5320-01-267-6376 (5320012676376) | |
| 5315-00-432-8021 (5315004328021) | 5315-01-271-9296 (5315012719296) | 5340-01-353-1927 (5340013531927) | 5320-01-413-1816 (5320014131816) | |
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