A1727
View detailed technical data, stock status, and sourcing information for: A1727
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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.
0.950 inches minimum and 0.960 inches maximum first end spline minor diameter, 38.0 minimum rockwell c and 43.0 maximum rockwell c metallic hardness rating, 1.375 inches nominal first end spline length, 14.156 inches nominal overall length, 1.130 inches minimum and 1.136 inches maximum first end spline major diameter
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Length
- 14.156 inches nominal
- Metallic Hardness Rating
- 38.0 minimum rockwell c and 43.0 maximum rockwell c
- First End Spline Length
- 1.375 inches nominal
- First End Spline Minor Diameter
- 0.950 inches minimum and 0.960 inches maximum
- First End Spline Major Diameter
- 1.130 inches minimum and 1.136 inches maximum
- Second End Spline Length
- 1.688 inches nominal
- Second End Spline Minor Diameter
- 0.915 inches minimum and 0.957 inches maximum
- Second End Spline Major Diameter
- 1.113 inches minimum and 1.120 inches maximum
- Second End Bearing Seat Diameter
- 1.190 inches minimum and 1.192 inches maximum
- Second End Distance From Bearing Seat To End
- 2.813 inches nominal
- First End Type
- splined
- Second End Type
- splined
- First End Spline Quantity
- 6
- Second End Spline Quantity
- 10
- First End Facility Diameter
- 1.090 inches minimum and 1.095 inches maximum
- First End Engaging/Locking/Positioning Facility
- locking device groove and shoulder
- First End Facility Width
- 0.033 inches minimum and 0.036 inches maximum
- First End Facility Location
- located 1.303 in. min 1.317 in. max from shaft end,@2.391 in. from shaft end
- First End Bearing Seat
- not included
- Second End Spline Type
- straight
- Second End Bearing Seat
- included
- Second End Bearing Seat Width
- 0.875 inches nominal
- First End Spline Type
- straight
- Special Features
- spherical pocket,0.437 in. to 0.440 in. dia in shaft end
- Material
- steel comp 4137
- Material Document And Classification
- sae 4137 assn std single material response
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 2520-00-311-8604 | No Name Available | 01/01/1963 |
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:
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 2520-00-737-2867?
Does the NSN 2520-00-737-2867 have a Schedule B code assigned?
Does NSN 2520-00-737-2867 require demilitarization?
Does NSN 2520-00-737-2867 contain precious materials?
Does NSN 2520-00-737-2867 contain hazardous materials?
When the NSN 2520-00-737-2867 was assigned to the Federal Catalog?
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