102908
View detailed technical data, stock status, and sourcing information for: 102908
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A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.
right-hand thread direction, square head style, 1.188 inches minimum and 1.250 inches maximum fastener length, 1.045 inches minimum and 1.107 inches maximum thread length, 2a 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 1.045 inches minimum and 1.107 inches maximum
- Fastener Length
- 1.188 inches minimum and 1.250 inches maximum
- Head Style
- square
- Head Height
- 0.315 inches minimum and 0.341 inches maximum
- Width Between Flats
- 0.423 inches minimum and 0.438 inches maximum
- Point Style
- cup
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.438 inches
- Features Provided
- casehardened
- Thread Quantity Per Inch
- 14
- Hardness Rating
- 45.0 rockwell c minimum and 53.0 rockwell c maximum overall
- Material
- steel comp 1010 or steel comp 1020 or steel comp 1038 overall
- Material Document And Classification
- 66 fed std all material responses overall
- Surface Treatment
- cadmium or zinc overall
- Surface Treatment Document And Classification
- qq-p-416,type 2,class 3 fed spec 1st treatment response or qq-z-325,type 2,class 3 fed spec 2nd treatment response overall
- Thread Series Designator
- unc
- Specification/Standard Data
- 96906-ms51054 government standard and 24617-102908 manufacturers 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 |
|---|---|
| 102908 | Setscrew |
| MS51054-56 | Setscrew |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-01-199-0249?
Does the NSN 5305-01-199-0249 have a Schedule B code assigned?
Does NSN 5305-01-199-0249 require demilitarization?
Does NSN 5305-01-199-0249 contain precious materials?
Does NSN 5305-01-199-0249 contain hazardous materials?
When the NSN 5305-01-199-0249 was assigned to the Federal Catalog?
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