AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Stud Recessed And Stepped |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5307 Studs |
| National Item Identification Number (NIIN) | 00-637-1918 (006371918) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp, Allison Transmission Inc, Rolls Royce Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| ST1231P006 | general motors corp | stud recessed and stepped | RFQ |
| ST1231P006 | allison transmission inc | stud recessed and stepped | RFQ |
| ST1231P006 | rolls royce corporation | stud recessed and stepped | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A NUT THREAD |
| AAJE | THREAD PITCH DIAMETERS | 0.2839 TO 0.2854 INCHES STUD THREAD |
| AAJF | THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| AAJF | THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| AASA | THREAD LENGTH | 0.500 INCHES MINIMUM NUT THREAD |
| AASA | THREAD LENGTH | 0.500 INCHES MINIMUM STUD THREAD |
| ABHP | OVERALL LENGTH | 1.688 INCHES NOMINAL |
| ADCZ | LENGTH OF RECESSED PORTION OF SHANK | 0.594 INCHES NOMINAL |
| ADDA | DIAMETER OF RECESSED PORTION OF SHANK | 0.203 INCHES NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 1DA18 |
| CQFM | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| CQJX | NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| MATT | MATERIAL | STEEL COMP 4130 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | RECESSED AND STEPPED |
| THSD | THREAD SERIES DESIGNATOR | UNS STUD THREAD |
| Relevant Components for NSN - 5307-00-637-1918, 5307006371918 | ||||
| 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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