| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 01-044-8501 (010448501) |
| NCB Code | USA (01) |
| Manufacturer | Alcoa Global Fasteners Inc, Huck International Inc, Heartland Precision Fasteners In, Sps Technologies Inc, Valley Todeco Inc, Hi Shear Corporation, Sonic Industries Inc, Lisi Aerospace Canada Corp, Boeing Company The |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| VS3037-4D21 | alcoa global fasteners inc | bolt shoulder | 92215 | RFQ |
| BM17019-4D21X | huck international inc | bolt shoulder | 97928 | RFQ |
| HP5497-4D21 | heartland precision fasteners in | bolt shoulder | 0zc92 | RFQ |
| 109450-4D21 | sps technologies inc | bolt shoulder | 80539 | RFQ |
| VAL23607-4D21 | valley todeco inc | bolt shoulder | 06710 | RFQ |
| MB88-4D21 | hi shear corporation | bolt shoulder | 73197 | RFQ |
| 109453-4D21X | sps technologies inc | bolt shoulder | 80539 | RFQ |
| S11-1061-4D21 | sonic industries inc | bolt shoulder | 57928 | RFQ |
| ST3M497-4D21 | sps technologies inc | bolt shoulder | 56878 | RFQ |
| PBF1254-4D21 | sps technologies inc | bolt shoulder | 27624 | RFQ |
| MB88-4D21 | lisi aerospace canada corp | bolt shoulder | l4528 | RFQ |
| ST3M497-4D21 | boeing company the | bolt shoulder | 76301 | RFQ |
| ST3M497-4D21 | alcoa global fasteners inc | bolt shoulder | 92215 | 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 | 1.693 INCHES MINIMUM AND 1.740 INCHES MAXIMUM |
| AASK | HEAD STYLE | DOUBLE HEXAGON |
| AASU | HEAD HEIGHT | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.264 INCHES MINIMUM FIRST SHOULDER AND 0.265 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 1.302 INCHES MINIMUM FIRST SHOULDER AND 1.322 INCHES MAXIMUM FIRST SHOULDER |
| AAWB | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM FIRST HOLE AND 0.081 INCHES MAXIMUM FIRST HOLE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRZS | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.572 INCHES MINIMUM FIRST HOLE AND 1.629 INCHES MAXIMUM FIRST HOLE |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| ZZZK | SPECIFICATION/STANDARD DATA | 76301-ST3-497 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Relevant Components for NSN - 5306-01-044-8501, 5306010448501 | ||||
| 5320-01-093-5687 (5320010935687) | 5340-00-286-8500 (5340002868500) | 5310-00-797-4430 (5310007974430) | 5331-01-548-6940 (5331015486940) | |
| 5340-01-389-2408 (5340013892408) | 5340-01-499-3481 (5340014993481) | 5310-01-418-9739 (5310014189739) | 5320-01-419-8697 (5320014198697) | |
| 5340-01-681-6722 (5340016816722) | 5340-01-620-4639 (5340016204639) | 5340-01-481-2087 (5340014812087) | 5331-01-097-0869 (5331010970869) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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