AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Square Neck |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-012-6739 (000126739) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 1.125 INCHES MINIMUM |
| AASB | FASTENER LENGTH | 2.500 INCHES NOMINAL |
| AASK | HEAD STYLE | BUTTON |
| AASL | HEAD DIAMETER | 0.907 INCHES MINIMUM AND 0.959 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.219 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| AGQB | NECK LENGTH | 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.438 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 14 |
| CQBC | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| CQFM | HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM OVERALL |
| CQHQ | MINIMUM YIELD STRENGTH | 40000 POUNDS PER SQUARE INCH |
| CWXQ | NECK WIDTH | 0.431 INCHES MINIMUM AND 0.452 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | GM 255M,GENERAL MOTORS CORP MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 4252-M FSC-24617 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | C-2 TYPE |
| Relevant Components for NSN - 5306-00-012-6739, 5306000126739 | ||||
| 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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