| Item Name | Bolt Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5306 Bolts |
| National Item Identification Number (NIIN) | 00-556-8849 (005568849) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 2.563 INCHES MINIMUM AND 2.641 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 11.813 INCHES MINIMUM AND 11.875 INCHES MAXIMUM |
| AASK | HEAD STYLE | HEXAGON EXTENDED WASHER |
| AASU | HEAD HEIGHT | 2.250 INCHES MINIMUM AND 2.312 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 2.172 INCHES MINIMUM AND 2.188 INCHES MAXIMUM |
| AATC | EXTENDED WASHER DIAMETER | 3.750 INCHES NOMINAL |
| AATD | EXTENDED WASHER THICKNESS | 1.000 INCHES NOMINAL |
| AATN | SHOULDER DIAMETER | 2.480 INCHES MINIMUM FIRST SHOULDER AND 2.490 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 9.234 INCHES MINIMUM FIRST SHOULDER AND 9.250 INCHES MAXIMUM FIRST SHOULDER |
| CQFM | HARDNESS RATING | 27.0 ROCKWELL C MINIMUM OVERALL AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| MATT | MATERIAL | STEEL COMP 4140 OVERALL OR STEEL COMP 8640 OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UN |
| Relevant Components for NSN - 5306-00-556-8849, 5306005568849 | ||||
| 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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