HT4057-5L-8
View detailed technical data, stock status, and sourcing information for: HT4057-5L-8
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A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
0.506 inches minimum and 0.556 inches maximum thread length, flat countersunk head style, 1.016 inches minimum and 1.046 inches maximum fastener length, right-hand thread direction, 3a thread class
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
- 0.506 inches minimum and 0.556 inches maximum
- Fastener Length
- 1.016 inches minimum and 1.046 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.575 inches minimum and 0.635 inches maximum
- Grip Diameter
- 0.3110 inches minimum and 0.3120 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.312 inches
- Grip Length
- 0.490 inches minimum and 0.510 inches maximum
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 125000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Special Features
- cetyl alcohol per mil-l-87132 ty 1 gr b
- Material
- steel comp xm-13 overall
- Material Document And Classification
- ams 5629 assn std single material response overall
- Surface Treatment
- aluminum and chromate overall
- Surface Treatment Document And Classification
- mil-c-83488 ty 2 cl 3 mil 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 |
|---|---|
| HT4057-5-8A | Close Tolerance Screw |
| HT4057-5L-8 | Close Tolerance Screw |
| HT4057-5L-8A | Close Tolerance Screw |
| ST3M733-5L8 | Close Tolerance Screw |
| WC4057-5-8 | Close Tolerance Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-254-1365?
Does the NSN 5305-01-254-1365 have a Schedule B code assigned?
Does NSN 5305-01-254-1365 require demilitarization?
Does NSN 5305-01-254-1365 contain precious materials?
Does NSN 5305-01-254-1365 contain hazardous materials?
When the NSN 5305-01-254-1365 was assigned to the Federal Catalog?
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