AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-550-3568 (005503568) |
| NCB Code | USA (00) |
| Manufacturer | Sikorsky Aircraft Corporation, Aero Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| S1620-64175-1 | sikorsky aircraft corporation | bolt shoulder | RFQ |
| 61-457 | aero corp | bolt shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.366 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.062 INCHES NOMINAL |
| AASK | HEAD STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.250 INCHES NOMINAL |
| AATB | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 0.499 INCHES NOMINAL FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.688 INCHES NOMINAL FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.375 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 24 |
| CQFM | HARDNESS RATING | 58.0 ROCKWELL C MINIMUM OVERALL AND 64.0 ROCKWELL C MAXIMUM OVERALL |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.842 INCHES NOMINAL FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | 0.250 IN. SPHERICAL RADIUS OF SHOULDERAT POINT OF INTERSECTION W/CIRCUMFERENTIAL GROOVE |
| MATT | MATERIAL | STEEL COMP E9310 OVERALL |
| SFTT | SURFACE TREATMENT | CADMIUM THREADS |
| SFTT | SURFACE TREATMENT | PHOSPHATE HEAD |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| Relevant Components for NSN - 5306-00-550-3568, 5306005503568 | ||||
| 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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