| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-142-9920 (011429920) |
| NCB Code | USA (01) |
| Manufacturer | Lisi Aerospace Canada Corp, Boeing Company The, Reid Products Inc, Hi Shear Corporation, Alcoa Global Fasteners Inc, West Coast Aerospace Inc, Fastener Innovation Technology Inc, Huck International Inc, Sps Technologies Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| HT4020-4-12AY | lisi aerospace canada corp | screw shoulder | l4528 | RFQ |
| 3M902C4-12A | boeing company the | screw shoulder | 76301 | RFQ |
| 11879C4-12A | reid products inc | screw shoulder | 59563 | RFQ |
| HT4020-4-12AY | hi shear corporation | screw shoulder | 73197 | RFQ |
| HT4020-4-12AY | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| WC4020-4-12AY | west coast aerospace inc | screw shoulder | 60516 | RFQ |
| 3M902C4-12A | fastener innovation technology inc | screw shoulder | 58998 | RFQ |
| HT4020-4-12AY | huck international inc | screw shoulder | 97928 | RFQ |
| HT4020-4-12AY | sps technologies inc | screw shoulder | 80539 | 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 | 1.203 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.0582 INCHES MINIMUM AND 0.0602 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2802 INCHES MINIMUM FIRST SHOULDER AND 0.2807 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.680 INCHES MINIMUM FIRST SHOULDER AND 0.702 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 ONE RUBBER O RING |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-142-9920, 5305011429920 | ||||
| 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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