BACS12CB08-7
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
3a thread class, 0.422 inches minimum and 0.469 inches maximum fastener length, 0.360 inches minimum and 0.469 inches maximum thread length, right-hand thread direction, hexagon head style
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
- 0.360 inches minimum and 0.469 inches maximum
- Fastener Length
- 0.422 inches minimum and 0.469 inches maximum
- Head Style
- hexagon
- Head Height
- 0.096 inches minimum and 0.110 inches maximum
- Width Between Flats
- 0.243 inches minimum and 0.251 inches maximum
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.164 inches
- Thread Quantity Per Inch
- 32
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum
- Screw Material
- steel comp e4340 or steel comp 8740
- Screw Material Document And Classification
- mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 assn std 2nd material response
- Screw Surface Treatment
- cadmium and chromate
- Screw Surface Treatment Document And Classification
- qq-p-416,type 2,class 2 fed spec single treatment response
- Thread Series Designator
- unjc
- Specification/Standard Data
- 80205-nas1801 professional/industrial association standard
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5305-01-003-8574 | No Name Available | 11/01/1991 |
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 |
|---|---|
| 10115086 | Machine Screw |
| A0822530E170001 | Machine Screw |
| BACS12CB08-7 | Machine Screw |
| NAS1801-08-7 | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-120-9898?
Does the NSN 5305-01-120-9898 have a Schedule B code assigned?
Does NSN 5305-01-120-9898 require demilitarization?
Does NSN 5305-01-120-9898 contain precious materials?
Does NSN 5305-01-120-9898 contain hazardous materials?
When the NSN 5305-01-120-9898 was assigned to the Federal Catalog?
Professional Distribution
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