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) | 01-142-7178 (011427178) |
| NCB Code | USA (01) |
| Manufacturer | Hi Shear Corporation, Sps Technologies Inc, Valley Todeco Inc, Heartland Precision Fasteners In, Boeing Company The, Huck International Inc, Sonic Industries Inc, Alcoa Global Fasteners Inc, Fastener Innovation Technology Inc, Lisi Aerospace Canada Corp |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| MB88-4-31 | hi shear corporation | bolt shoulder | RFQ |
| PBF1254-4-31 | sps technologies inc | bolt shoulder | RFQ |
| VAL23607-4-31 | valley todeco inc | bolt shoulder | RFQ |
| ST3M497-4-31 | sps technologies inc | bolt shoulder | RFQ |
| HP5497-4-31 | heartland precision fasteners in | bolt shoulder | RFQ |
| ST3M497-4-31 | boeing company the | bolt shoulder | RFQ |
| BM17019-4-31X | huck international inc | bolt shoulder | RFQ |
| 109450-4-31 | sps technologies inc | bolt shoulder | RFQ |
| S11-1061-4-31 | sonic industries inc | bolt shoulder | RFQ |
| VS3037-4-31 | alcoa global fasteners inc | bolt shoulder | RFQ |
| ST3M497-4-31 | fastener innovation technology inc | bolt shoulder | RFQ |
| MB88-4-31 | lisi aerospace canada corp | bolt shoulder | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 2.319 INCHES MINIMUM AND 2.366 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON |
| AASU | HEAD HEIGHT | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.439 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2646 INCHES MINIMUM FIRST SHOULDER AND 0.2651 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.928 INCHES MINIMUM FIRST SHOULDER AND 1.948 INCHES MAXIMUM FIRST SHOULDER |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | PASSIVATE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Relevant Components for NSN - 5306-01-142-7178, 5306011427178 | ||||
| 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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