5305-00-543-4909
Find complete technical information, availability, and procurement data for: 5305-00-543-4909
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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.
right-hand thread direction, flat countersunk head style, 0.455 inches minimum and 0.510 inches maximum thread length, 0.953 inches minimum and 1.000 inches maximum fastener length, 3a 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
- 3a
- Thread Direction
- right-hand
- Thread Length
- 0.455 inches minimum and 0.510 inches maximum
- Fastener Length
- 0.953 inches minimum and 1.000 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.497 inches minimum and 0.507 inches maximum
- Grip Diameter
- 0.2483 inches minimum and 0.2492 inches maximum
- Single Shear Strength
- 4650 pounds per square inch
- Internal Drive Style
- cross recess type 1
- Nominal Thread Diameter
- 0.250 inches
- Grip Length
- 0.490 inches minimum and 0.510 inches maximum
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 16000 pounds per square inch
- Hardness Rating
- 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Surface Finish
- 32.0 microinches grip
- Material
- steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
- Material Document And Classification
- mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416,type 2 class 3 fed spec single treatment response overall
- Thread Series Designator
- unf
- Specification/Standard Data
- 80205-nas334 professional/industrial association standard
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 |
|---|---|
| NAS334CFA7-5 | Close Tolerance Screw |
FAQs
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When the NSN 5305-00-543-4909 was assigned to the Federal Catalog?
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