NAS1191-04P5LH
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An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.
3a thread class, right-hand thread direction, 0.231 inches minimum and 0.312 inches maximum thread length, 0.281 inches minimum and 0.312 inches maximum fastener length, flat chamfer 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
- 0.231 inches minimum and 0.312 inches maximum
- Fastener Length
- 0.281 inches minimum and 0.312 inches maximum
- Head Style
- flat chamfer
- Head Diameter
- 0.178 inches minimum and 0.183 inches maximum
- Head Height
- 0.059 inches minimum and 0.069 inches maximum
- Locking Feature
- strip 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
- Surface Finish
- 32.0 microinches bearing surface of head
- Surface Finish
- 32.0 microinches grip
- Surface Finish
- 32.0 microinches threads
- Material
- steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 type 2 class 2 fed spec single treatment response overall
- Thread Series Designator
- unjc
- Specification/Standard Data
- 80205-nas1191 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 |
|---|---|
| NAS1191-04P5LH | Socket Head Cap Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-155-2568?
Does the NSN 5305-01-155-2568 have a Schedule B code assigned?
Does NSN 5305-01-155-2568 require demilitarization?
Does NSN 5305-01-155-2568 contain precious materials?
Does NSN 5305-01-155-2568 contain hazardous materials?
When the NSN 5305-01-155-2568 was assigned to the Federal Catalog?
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