5985-01-309-4948

Find complete technical information, availability, and procurement data for: 5985-01-309-4948
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

National Stock Number

5985-01-309-4948

Item Name Code

00838

Assigment Date

10/19/1989 (36 years ago)

An item designed to be mounted around a shaft to limit axial movement of the shaft and/or its assembled parts. It is secured directly to the shaft by use of a setscrew(s), pin(s), or the like, which may be a part of the item of supply. A pilot hole drilled in or through the wall(s) for drilling and pinning at application may be considered a method of securing. Solid items have a bearing surface on one or both end(s) perpendicular to the axis. For items designed to be mounted around the extended hub portion of a mounted item on a shaft or clamp around a shaft, see clamp, hub. See also bearing, sleeve; bushing, sleeve; spacer, sleeve; and coupling, shaft, rigid.

2.375 inches nominal center to center distance between mounting facilities parallel to length, coaxial type body style, 0.600 inches nominal center to center distance between mounting facilities parallel to width, transmission line application design, 3.640 inches nominal overall length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Application Design: transmission line
Body Style: coaxial type
Overall Length: 3.640 inches nominal
Center To Center Distance Between Mounting Facilities Parallel To Length: 2.375 inches nominal
Center To Center Distance Between Mounting Facilities Parallel To Width: 0.600 inches nominal
Overall Height: 0.800 inches nominal
Overall Width: 1.870 inches nominal
Voltage Standing Wave Ratio: 1.40
Coaxial Connector Series Designation: sma
Power Rating: 0.5 watts average
Mounting Facility Screw Thread Series Designator: unc
Insertion Loss At Minimum Attenuation In Maximum Decibels: 3.3
Overall Attenuation Range In Decibels: +1.0 to 32.0
Attenuation Accuracy Reference Frequency: 1.0 gigahertz
Attenuation Variation Method: stepped
Step Position Quantity: 6
Attenuation Per Step In Decibels: 1.0 and 2.0 and 4.0 and 8.0 and 16.0 and 32.0
Mounting Facility Type And Quantity: 4 threaded hole
Frequency Range: 0.000 hertz minimum and 1.500 gigahertz maximum
Segment Attenuation Range In Decibels: +1.00 to 2.00 and +2.00 to 4.00 and +4.00 to 8.00 and +8.00 to 16.00 and +16.00 to 32.00
Mounting Thread Quantity: 56 per inch
Adjustment Device Type And Quantity: 1 electronic, programmable
Mounting Facility Pattern: four position rectangular
Mounting Facility Nominal Screw Thread Diameter: 0.086 inches
Impedance Rating In Ohms: 50.0 input-output
Mounting Thread Tolerance Class: 2b external
Terminal Type And Quantity: 2 connector, coaxial, female and 1 connector, receptacle

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
5P63SS26-TTL	Variable Attenuator
6406856-5	Variable Attenuator

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5985-01-309-4948?

The FSCG of the NSN 5985-01-309-4948 is 5985

Does the NSN 5985-01-309-4948 have a Schedule B code assigned?

Yes, the Schedule B code is 8529109000

Does NSN 5985-01-309-4948 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5985-01-309-4948 contain precious materials?

Item does not contain precious metal.

Does NSN 5985-01-309-4948 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5985-01-309-4948 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Oct 19, 1989