2A153
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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.
23.500 inches nominal overall length, 2 terminal quantity, slot or hole type mounting facility mounting method style, strip element body style, 1.500 inches nominal width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Mounting Method Style
- slot or hole type mounting facility
- Body Style
- strip element
- Terminal Quantity
- 2
- Width
- 1.500 inches nominal
- Overall Length
- 23.500 inches nominal
- Effective Heating Length
- 19.500 inches nominal
- Element Radiation Spectrum
- noninfrared
- Element Connection Style
- stud type
- Terminal Length
- 0.531 inches nominal
- Terminal Arrangement Style
- offset or staggered at one end
- Mounting Facility Length
- 0.281 inches nominal
- Center To Center Distance Between Mounting Facilities Parallel To Width
- 22.625 inches nominal
- Mounting Facility Width
- 0.625 inches nominal
- Hole Or Slot Quantity
- 2
- Watt Density Rating
- 6.8 per square inch single voltage
- Length
- 22.000 inches nominal
- Maximum Wattage Rating In Watts
- 500.0 single voltage
- Element Quantity
- 1
- Nominal Thread Size
- 0.190 inches stud
- Thread Quantity
- 32.0 per inch stud
- Voltage In Volts And Current Type
- 120.0 ac single voltage
- Phase
- not rated single voltage
- Frequency In Hertz
- 60.0
- Material
- steel sheath
- Thread Series Designator
- unf stud
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 4540-00-277-2390 | No Name Available | 01/01/1960 |
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 4520-00-585-9988?
Does the NSN 4520-00-585-9988 have a Schedule B code assigned?
Does NSN 4520-00-585-9988 require demilitarization?
Does NSN 4520-00-585-9988 contain precious materials?
Does NSN 4520-00-585-9988 contain hazardous materials?
When the NSN 4520-00-585-9988 was assigned to the Federal Catalog?
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