AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
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| Item Name | Screw Externally Relieved Body |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-248-5731 (012485731) |
| NCB Code | USA (01) |
| Manufacturer | Martin Marietta Technologies Inc, Lockheed Martin Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 1213D1597FIND189 | martin marietta technologies inc | screw externally relieved body | RFQ |
| 1217B0407 | martin marietta technologies inc | screw externally relieved body | RFQ |
| 1217B0407 | lockheed martin corporation | screw externally relieved body | RFQ |
| 1213D1597FIND189 | lockheed martin corporation | screw externally relieved body | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.310 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 0.500 INCHES NOMINAL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.385 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.080 INCHES NOMINAL |
| AAUM | LOCKING FEATURE | PATCH THREADS |
| AAWC | FIRST DIAMETER FROM HEAD | 0.134 INCHES NOMINAL |
| AAWH | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.110 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQBC | MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CSNG | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| MATT | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE |
| MATT | MATERIAL | STEEL COMP 302 FASTENER OR STEEL COMP 303 FASTENER OR STEEL COMP 304 FASTENER OR STEEL COMP 305 FASTENER OR STEEL COMP 316 FASTENER |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED-STD66 FED STD ALL MATERIAL RESPONSES FASTENER |
| SFTT | SURFACE TREATMENT | PASSIVATE FASTENER |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE FASTENER |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| Relevant Components for NSN - 5305-01-248-5731, 5305012485731 | ||||
| 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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