| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-568-1024 (015681024) |
| NCB Code | USA (01) |
| Manufacturer | Heartland Precision Fasteners In, Hi Shear Corporation, Reid Products Inc, Sps Technologies Inc, Valley Todeco Inc, West Coast Aerospace Inc, Alcoa Global Fasteners Inc, Fastener Innovation Technology Inc, Houston Precision Fastener L L C, Boeing Company The, Huck International Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| ST3M653C6-21A | heartland precision fasteners in | screw shoulder | 0zc92 | RFQ |
| HT4020-6-21AX | hi shear corporation | screw shoulder | 73197 | RFQ |
| 11927C6-21A | reid products inc | screw shoulder | 59563 | RFQ |
| HT4020-6-21AX | sps technologies inc | screw shoulder | k5673 | RFQ |
| ST3M653C6-21A | valley todeco inc | screw shoulder | 06710 | RFQ |
| WC4020-6-21AX | west coast aerospace inc | screw shoulder | 60516 | RFQ |
| HT4020-6-21AX | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| ST3M653C6-21A | fastener innovation technology inc | screw shoulder | 58998 | RFQ |
| ST3M653C6-21A | houston precision fastener l l c | screw shoulder | 1vsl7 | RFQ |
| ST3M653C6-21A | boeing company the | screw shoulder | 76301 | RFQ |
| HT4020-6-21AX | huck international inc | screw shoulder | 17446 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.641 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.953 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.389 INCHES MINIMUM FIRST SHOULDER AND 0.390 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.129 INCHES MINIMUM FIRST SHOULDER AND 1.151 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | FURNISHED WITH ONE RUBBER O RING |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-568-1024, 5305015681024 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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