| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-590-4420 (015904420) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| NAS1580V6T21X | national aerospace standards com | screw close tolerance | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | Head Style | FLAT COUNTERSUNK |
| CMLP | Thread Quantity Per Inch | 24 |
| MATT | Material | TITANIUM ALLOY UNS R56400 OVERALL |
| AAJF | Thread Direction | RIGHT-HAND |
| ABQZ | Internal Drive Style | TORQUE-SET RIBBED |
| THSD | Thread Series Designator | UNJF |
| AGAV | End Item Identification | B-1B AIRCRAFT |
| AHYM | Nominal Thread Diameter | 0.375 INCHES |
| ANEE | Grip Length | 1.312 INCHES NOMINAL |
| AASL | Head Diameter | 0.760 INCHES NOMINAL |
| AASA | Thread Length | 0.594 INCHES NOMINAL |
| AASB | Fastener Length | 1.906 INCHES NOMINAL |
| MRC | Decoded Requirement | Clear Text Reply |
| CRSQ | Countersink Angle | 100.0 DEGREES NOMINAL |
| AAUR | Grip Diameter | 0.390 INCHES NOMINAL |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-590-4420, 5305015904420 | ||||
| 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) | |
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