5305-01-443-6986
Find complete technical information, availability, and procurement data for: 5305-01-443-6986
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A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.
1.844 inches nominal fastener length, flat countersunk head style, 3a thread class, right-hand thread direction, 0.594 inches nominal thread length
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
- 0.594 inches nominal
- Fastener Length
- 1.844 inches nominal
- Head Style
- flat countersunk
- Head Diameter
- 0.5149 inches minimum
- Head Height
- 0.081 inches nominal
- Grip Diameter
- 0.3735 inches minimum and 0.3745 inches maximum
- Internal Drive Style
- offset cruciform (torque set)
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 1.250 inches nominal
- Thread Quantity Per Inch
- 24
- Minimum Tensile Strength
- 160000 pounds per square inch
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Part Name Assigned By Controlling Agency
- navy special project
- Material
- steel comp 4140 or steel comp 4340 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec single material response or mil-s-5000 mil spec single material response or mil-s-6049 mil spec single material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416,ty2,cl2 fed spec single treatment response overall
- 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 |
|---|---|
| NAS1581A6T20 | Close Tolerance Screw |
| NAS1581F6T20 | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-443-6986 was assigned to the Federal Catalog?
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