5306-00-637-0388
Find complete technical information, availability, and procurement data for: 5306-00-637-0388
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An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
square extended washer head style, right-hand thread direction, 0.688 inches minimum thread length, 1.750 inches nominal fastener 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
- 0.688 inches minimum
- Fastener Length
- 1.750 inches nominal
- Head Style
- square extended washer
- Head Height
- 0.750 inches nominal
- Width Between Flats
- 0.497 inches minimum and 0.502 inches maximum
- Extended Washer Diameter
- 0.750 inches nominal
- Extended Washer Thickness
- 0.125 inches nominal
- First Diameter From Head
- 0.266 inches nominal
- Distance From Largest Bearing Surface Of Head To End Of First Diameter
- 1.062 inches nominal
- Nominal Thread Diameter
- 0.375 inches
- Thread Quantity Per Inch
- 16
- Externally Relieved Body Diameter Quantity
- 1
- Material
- steel comp 1117 overall
- Surface Treatment
- zinc or phosphate overall
- Surface Treatment Document And Classification
- 3064 fscm 54567 mfr ref 1st treatment response or 3066 fscm 54567 mfr ref 2nd treatment response overall
- Thread Series Designator
- unc
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5306-00-206-0314 | No Name Available | 01/01/1963 |
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:
FAQs
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Does NSN 5306-00-637-0388 contain precious materials?
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When the NSN 5306-00-637-0388 was assigned to the Federal Catalog?
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