A174-21E
View detailed technical data, stock status, and sourcing information for: A174-21E
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A headless, generally cylindrically-shaped item having a straight, smooth, solid body, with or without a drilled hole(s). It has an outside diameter equal to or less than its length. Its length must not exceed twelve inches (304 mm); for items whose length exceeds twelve inches (304 mm); see rod,straight,headless. It is used for aligning or transfer of torque and/or thrust, by fitting into corresponding holes of another item. See also pin,straight,threaded.
0.499 inches minimum and 0.640 inches maximum thread length, flat countersunk head style, 2.700 inches minimum and 2.740 inches maximum fastener length, 3a thread class, right-hand thread direction
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
- 0.499 inches minimum and 0.640 inches maximum
- Fastener Length
- 2.700 inches minimum and 2.740 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.452 inches minimum and 0.510 inches maximum
- Internal Drive Style
- torque
- Nominal Thread Diameter
- 0.250 inches
- Thread Quantity Per Inch
- 28
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Screw Material
- steel corrosion resisting
- Thread Series Designator
- unf
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 |
|---|---|
| A174-21E | Machine Screw |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5305-00-194-3225?
Does the NSN 5305-00-194-3225 have a Schedule B code assigned?
Does NSN 5305-00-194-3225 require demilitarization?
Does NSN 5305-00-194-3225 contain precious materials?
Does NSN 5305-00-194-3225 contain hazardous materials?
When the NSN 5305-00-194-3225 was assigned to the Federal Catalog?
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