5305-01-278-1978
Find complete technical information, availability, and procurement data for: 5305-01-278-1978
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An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.
pan head style, 3a thread class, right-hand thread direction, 1.138 inches minimum and 1.250 inches maximum thread length, 1.188 inches minimum and 1.250 inches maximum fastener length
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
- 1.138 inches minimum and 1.250 inches maximum
- Fastener Length
- 1.188 inches minimum and 1.250 inches maximum
- Head Style
- pan
- Head Diameter
- 0.205 inches minimum and 0.219 inches maximum
- Head Height
- 0.070 inches minimum and 0.080 inches maximum
- Locking Feature
- pellet threads
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.112 inches
- Thread Quantity Per Inch
- 40
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum fastener
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Surface Finish
- 63.0 microinches bearing surface of head
- Material
- plastic locking feature
- Material
- steel comp 4140 or steel comp 4340 or steel comp 8740 fastener
- Material Document And Classification
- mil-f-18240 mil spec single material response locking feature
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-8844 mil spec 2nd material response or ams6414 assn std 2nd material response or mil-s-6049 mil spec 3rd material response fastener
- Surface Treatment
- cadmium and chromate fastener
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 2 fed spec single treatment response fastener
- Thread Series Designator
- unjc
- Specification/Standard Data
- 80205-nas1190 professional/industrial association standard
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 |
|---|---|
| 6300797-04P20N | Socket Head Cap Screw |
| NAS1190-04P20N | Socket Head Cap Screw |
FAQs
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Does NSN 5305-01-278-1978 contain hazardous materials?
When the NSN 5305-01-278-1978 was assigned to the Federal Catalog?
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