5305-01-291-6614
Find complete technical information, availability, and procurement data for: 5305-01-291-6614
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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, 2.454 inches minimum and 2.484 inches maximum fastener length, 0.569 inches minimum and 0.619 inches maximum thread length, flat countersunk head style, 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
- 0.569 inches minimum and 0.619 inches maximum
- Fastener Length
- 2.454 inches minimum and 2.484 inches maximum
- Head Style
- flat countersunk
- Head Diameter
- 0.515 inches minimum and 0.566 inches maximum
- Grip Diameter
- 0.3735 inches minimum and 0.3745 inches maximum
- Internal Drive Style
- high-torque
- Nominal Thread Diameter
- 0.375 inches
- Grip Length
- 1.865 inches minimum and 1.885 inches maximum
- Thread Quantity Per Inch
- 3a
- Countersink Angle
- 99.0 degrees minimum and 101.0 degrees maximum
- Material
- steel comp 4140 or steel comp e4340 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-6049 mil spec 3rd material response overall
- Surface Treatment
- cadmium and chromate overall
- Surface Treatment Document And Classification
- qq-p-416 ty 2 cl 2 fed spec single treatment response overall
- Thread Series Designator
- unjf
- Specification/Standard Data
- 80205-nas1581 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 |
|---|---|
| NAS1581A6H30 | Close Tolerance Screw |
| NAS1581F6H30 | Close Tolerance Screw |
FAQs
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When the NSN 5305-01-291-6614 was assigned to the Federal Catalog?
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