BACB30FD12-50X
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An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.
0.993 inches nominal thread length, 4.103 inches minimum and 4.133 inches maximum fastener length, 3a thread class, double hexagon w/hole head style, right-hand thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.993 inches nominal
- Fastener Length
- 4.103 inches minimum and 4.133 inches maximum
- Head Style
- double hexagon w/hole
- Head Height
- 0.701 inches minimum and 0.721 inches maximum
- Width Between Flats
- 0.797 inches minimum and 0.827 inches maximum
- Extended Washer Diameter
- 1.220 inches minimum and 1.230 inches maximum
- Extended Washer Thickness
- 0.168 inches minimum and 0.188 inches maximum
- Shoulder Diameter
- 0.763 inches minimum and 0.764 inches maximum first shoulder
- Shoulder Length
- 3.115 inches minimum and 3.140 inches maximum first shoulder
- Nominal Thread Diameter
- 0.750 inches
- Thread Quantity Per Inch
- 16
- Minimum Tensile Strength
- 180000 pounds per square inch
- Shoulder Shape
- round first shoulder
- Material
- steel comp 4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| BACB30FD12-50X | Shoulder Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-01-274-9807?
Does the NSN 5306-01-274-9807 have a Schedule B code assigned?
Does NSN 5306-01-274-9807 require demilitarization?
Does NSN 5306-01-274-9807 contain precious materials?
Does NSN 5306-01-274-9807 contain hazardous materials?
When the NSN 5306-01-274-9807 was assigned to the Federal Catalog?
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