B1821BH038C175C
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An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
hexagon head style, 1.000 inches minimum and 1.188 inches maximum thread length, 2a thread class, 1.688 inches minimum and 1.750 inches maximum fastener length, 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
- 2a
- Thread Direction
- right-hand
- Thread Length
- 1.000 inches minimum and 1.188 inches maximum
- Fastener Length
- 1.688 inches minimum and 1.750 inches maximum
- Head Style
- hexagon
- Head Height
- 0.226 inches minimum and 0.243 inches maximum
- Width Between Flats
- 0.551 inches minimum and 0.562 inches maximum
- Hole Diameter
- 0.060 inches minimum and 0.068 inches maximum
- Locking Feature
- patch or strip threads
- Nominal Thread Diameter
- 0.375 inches
- Hole Quantity
- 1
- Hole Type
- drilled
- Features Provided
- finished head
- Thread Quantity Per Inch
- 16
- Minimum Tensile Strength
- 150000 pounds per square inch
- Hardness Rating
- 32.0 rockwell c minimum and 38.0 rockwell c maximum fastener
- Hole Configuration Style
- hexagon flats
- Material
- plastic polyamide (nylon) locking feature
- Material
- steel fastener
- Material
- steel overall
- Material Document And Classification
- sae j429 grade 8 assn std single material response fastener
- Surface Treatment
- zinc and chromate fastener
- Surface Treatment Document And Classification
- astm b633 ty 2 sc 3 assn std single treatment response fastener
- Thread Series Designator
- unc
- Nondefinitive Spec/Std Data
- 2 type and 10p style and 8 grade
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 |
|---|---|
| B1821BH038C175C | Machine Bolt |
| MS18154-63L | Machine Bolt |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5306-01-163-3122?
Does the NSN 5306-01-163-3122 have a Schedule B code assigned?
Does NSN 5306-01-163-3122 require demilitarization?
Does NSN 5306-01-163-3122 contain precious materials?
Does NSN 5306-01-163-3122 contain hazardous materials?
When the NSN 5306-01-163-3122 was assigned to the Federal Catalog?
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