NAS1251-5-64
View detailed technical data, stock status, and sourcing information for: NAS1251-5-64
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
0.688 inches minimum eye stock diameter, 0.615 inches minimum and 0.775 inches maximum thread length, 3a thread class, 0.715 inches minimum and 0.775 inches maximum shank 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.615 inches minimum and 0.775 inches maximum
- Shank Length
- 0.715 inches minimum and 0.775 inches maximum
- Eye Stock Diameter
- 0.688 inches minimum
- Shoulder Diameter
- 0.554 inches minimum and 0.559 inches maximum
- Shoulder Length
- 3.990 inches minimum and 4.010 inches maximum
- Ring Stock Diameter
- 0.355 inches minimum and 0.395 inches maximum
- Nominal Thread Diameter
- 0.438 inches
- Thread Quantity Per Inch
- 20
- Minimum Tensile Strength
- 160000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
- Surface Treatment
- cadmium and chromate or zinc and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty2 cl3 fed spec 1st treatment response or qq-z-325 ty2 cl3 fed spec 2nd treatment response overall
- Style Designator
- swivel
- 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 |
|---|---|
| NAS1251-5-64 | Ring Bolt |
FAQs
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What is the FSCG of the NSN 5306-01-256-5167?
Does the NSN 5306-01-256-5167 have a Schedule B code assigned?
Does NSN 5306-01-256-5167 require demilitarization?
Does NSN 5306-01-256-5167 contain precious materials?
Does NSN 5306-01-256-5167 contain hazardous materials?
When the NSN 5306-01-256-5167 was assigned to the Federal Catalog?
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