| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-470-0864 (014700864) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| NAS1581C3R1 | national aerospace standards com | screw close tolerance | 80205 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ANEE | Grip Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM |
| AHYM | Nominal Thread Diameter | 0.190 INCHES |
| AASK | Head Style | FLAT COUNTERSUNK |
| CSYM | Surface Finish | 32.0 MICROINCHES THREADS |
| AASB | Fastener Length | 0.471 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| THSD | Thread Series Designator | UNJF |
| AASL | Head Diameter | 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM |
| AASA | Thread Length | 0.337 INCHES MINIMUM AND 0.387 INCHES MAXIMUM |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| MRC | Decoded Requirement | Clear Text Reply |
| ABQZ | Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| AAJF | Thread Direction | RIGHT-HAND |
| MATT | Material | IRON ALLOY 660 OVERALL |
| CSYM | Surface Finish | 32.0 MICROINCHES GRIP |
| AAUR | Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 32 |
| ZZZK | Specification/Standard Data | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| MDCL | Material Document And Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5853 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FEAT | Special Features | INTERNAL DRIVE RIBBED |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-470-0864, 5305014700864 | ||||
| 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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