| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-478-3696 (014783696) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| NAS1580A4T16X | national aerospace standards com | screw shoulder | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.403 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 1.791 INCHES MINIMUM AND 1.821 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| AASL | HEAD DIAMETER | 0.464 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.2646 INCHES MINIMUM GRIP AND 0.2651 INCHES MAXIMUM GRIP |
| AATX | SHOULDER LENGTH | 1.403 INCHES NOMINAL GRIP |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CQBC | MINIMUM TENSILE STRENGTH | 5790 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | USED FOR REPLACEMENT; 100% FLUSH HEAD; 160 KSI |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 4340 OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5305-01-478-3696, 5305014783696 | ||||
| 5325-00-489-4951 (5325004894951) | 5305-01-688-2332 (5305016882332) | 5310-01-270-2593 (5310012702593) | 5360-01-362-9775 (5360013629775) | |
| 5305-01-574-2082 (5305015742082) | 5330-00-875-6402 (5330008756402) | 5310-01-166-6682 (5310011666682) | 5325-01-330-8489 (5325013308489) | |
| 5310-01-519-7106 (5310015197106) | 5310-12-130-8939 (5310121308939) | 5331-01-513-1941 (5331015131941) | 5310-01-360-7550 (5310013607550) | |
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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