NAS1155-22
View detailed technical data, stock status, and sourcing information for: NAS1155-22
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An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
1.735 inches minimum and 1.765 inches maximum fastener length, 3a thread class, right-hand thread direction, flat countersunk head style, 0.375 inches minimum thread 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
- 0.375 inches minimum
- Fastener Length
- 1.735 inches minimum and 1.765 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.577 inches minimum and 0.635 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 1.375 inches nominal
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1155 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 |
|---|---|
| NAS1155-22 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-939-9185?
Does the NSN 5305-00-939-9185 have a Schedule B code assigned?
Does NSN 5305-00-939-9185 require demilitarization?
Does NSN 5305-00-939-9185 contain precious materials?
Does NSN 5305-00-939-9185 contain hazardous materials?
When the NSN 5305-00-939-9185 was assigned to the Federal Catalog?
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