5307-01-398-0340
Find complete technical information, availability, and procurement data for: 5307-01-398-0340
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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 nut thread a thread direction, 3a nut thread a thread class, right-hand nut thread b thread direction, 3a nut thread b thread class, 0.735 inches minimum and 0.765 inches maximum nut thread a 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 nut thread a
- Thread Class
- 3a nut thread b
- Thread Direction
- right-hand nut thread a
- Thread Direction
- right-hand nut thread b
- Thread Length
- 0.735 inches minimum and 0.765 inches maximum nut thread a
- Thread Length
- 0.856 inches minimum and 0.896 inches maximum nut thread b
- Locking Feature
- ring, lock serrated
- Overall Length
- 1.950 inches nominal
- Distance From Serrated Portion To Nut End
- 1.735 inches minimum and 1.765 inches maximum
- Distance From Serrated Portion To Stud End
- 1.056 inches minimum and 1.096 inches maximum
- Distance From Serrated Portion To End Of Stud Thread
- 0.180 inches minimum and 0.220 inches maximum
- Serration Quantity
- 24
- Thread Quantity Per Inch
- 13 nut thread b
- Thread Quantity Per Inch
- 24 nut thread a
- Hardness Rating
- 277.0 brinell hultgren nominal
- Nominal Thread Size
- 0.375 inches nut thread a
- Nominal Thread Size
- 0.500 inches nut thread b
- Surface Finish
- 32.0 microinches nut thd
- Surface Finish
- 63.0 microinches shank
- Serration Included Angle
- 102.0 degrees nominal
- Material
- iron alloy 660
- Material Document And Classification
- ams5731 assn std single material response or ams5734 assn std single material response
- Surface Treatment
- passivate overall
- Surface Treatment Document And Classification
- qq-p-35 fed spec single treatment response overall
- Style Designator
- locked in
- Thread Series Designator
- unjf nut thread a
- Thread Series Designator
- unjf nut thread b
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 |
|---|---|
| MS51992C805-28 | Locked in Stud |
FAQs
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When the NSN 5307-01-398-0340 was assigned to the Federal Catalog?
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