5320-01-665-9681
Find complete technical information, availability, and procurement data for: 5320-01-665-9681
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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.
3a thread class, 0.077 inches minimum and 0.090 inches maximum head height, straight pan head style, 1.520 inches nominal fastener 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
- Fastener Length
- 1.520 inches nominal
- Head Style
- straight pan
- Head Height
- 0.077 inches minimum and 0.090 inches maximum
- Width Between Flats
- 0.122 inches minimum and 0.142 inches maximum
- Shank Diameter
- 0.2641 inches minimum and 0.2651 inches maximum
- Shank Style
- pin-rivet, straight, threaded
- Head Major Diameter
- 0.415 inches minimum and 0.440 inches maximum
- Lubrication
- cetyl alcohol, spec 305, hi-shear corp
- End Item Identification
- b-52 aircraft
- Grip Length
- 1.125 inches nominal
- Thread Quantity Per Inch
- 28
- Minimum Tensile Strength
- 160000 pounds per square inch
- Nominal Thread Size
- 0.250 inches
- Material
- steel comp 4340 or steel comp 8740 overall
- Material Document And Classification
- ams 6415 assn std 1st material response or ams 6349 assn std 2nd material response or ams-s-6049 assn std 3rd material response overall
- Surface Treatment
- cadmium overall
- Surface Treatment Document And Classification
- qq-p-416, type 1, class 2 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 |
|---|---|
| HL64-8-18 | Pin-Rivet |
FAQs
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