AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Screw Close Tolerance |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-435-6433 (014356433) |
| NCB Code | USA (01) |
| Manufacturer | National Aerospace Standards Com |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| NAS1581K3T12 | national aerospace standards com | screw close tolerance | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| MDCL | Material Document And Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AHYM | Nominal Thread Diameter | 0.190 INCHES |
| AASK | Head Style | FLAT COUNTERSUNK |
| ANEE | Grip Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| MATT | Material | TITANIUM ALLOY UNS R56400 OVERALL |
| MRC | Decoded Requirement | Clear Text Reply |
| AASL | Head Diameter | 0.257 INCHES MINIMUM AND 0.304 INCHES MAXIMUM |
| AASA | Thread Length | 0.363 INCHES NOMINAL |
| CQBC | Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH |
| AASB | Fastener Length | 1.098 INCHES MINIMUM AND 1.128 INCHES MAXIMUM |
| ABQZ | Internal Drive Style | TORQUE-SET RIBBED |
| AAJF | Thread Direction | RIGHT-HAND |
| THSD | Thread Series Designator | UNJF |
| AAUR | Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| CMLP | Thread Quantity Per Inch | 32 |
| CRSQ | Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| ZZZK | Specification/Standard Data | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AAJD | Thread Class | 3A |
| Relevant Components for NSN - 5305-01-435-6433, 5305014356433 | ||||
| 5305-00-151-0390 (5305001510390) | 5305-00-162-0212 (5305001620212) | 5330-01-021-6193 (5330010216193) | 5306-01-667-2305 (5306016672305) | |
| 5305-00-702-7578 (5305007027578) | 5306-01-467-0619 (5306014670619) | 5340-14-507-0973 (5340145070973) | 5330-01-545-5049 (5330015455049) | |
| 5331-01-433-9967 (5331014339967) | 5330-01-176-0563 (5330011760563) | 5330-20-001-0516 (5330200010516) | 5305-00-550-9932 (5305005509932) | |
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