RA-51N

View detailed technical data, stock status, and sourcing information for: RA-51N
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

National Stock Number

5985-01-099-8051

Item Name Code

00838

Assigment Date

08/23/1980 (45 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 overall height, 3.688 inches nominal overall length, transmission line application design, 1.875 inches nominal overall width, coaxial type body style

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: 3.688 inches nominal
Overall Height: 2.375 inches nominal
Overall Width: 1.875 inches nominal
Shaft Diameter: 0.250 inches nominal
Shaft Length: 0.750 inches nominal
Operating Temp Range: -20.0 to 125.0 celsius
Coaxial Connector Series Designation: n
Power Rating: 0.5 watts average
Overall Attenuation Range In Decibels: +0.0 to 70.0
Attenuation Variation Method: stepped
Step Position Quantity: 10
Attenuation Per Step In Decibels: 10.0
Frequency Range: 0.000 hertz minimum and 2.000 gigahertz maximum
Overall Attenuation Accuracy In Decibels: -1.00 to 1.00
Adjustment Device Type And Quantity: 1 knob and 1 shaft
Shaft Type: round
Impedance Rating In Ohms: 50.0 input-output
Terminal Type And Quantity: 2 connector, coaxial, female
Fsc Application Data: antennas,waveguides,and related equipment

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
RA-51	Variable Attenuator
RA-51N	Variable Attenuator
RSA-35100	Variable Attenuator

FAQs

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

What is the FSCG of the NSN 5985-01-099-8051?

The FSCG of the NSN 5985-01-099-8051 is 5985

Does the NSN 5985-01-099-8051 have a Schedule B code assigned?

Yes, the Schedule B code is 8529109000

Does NSN 5985-01-099-8051 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 5985-01-099-8051 contain precious materials?

Item does not contain precious metal.

Does NSN 5985-01-099-8051 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 5985-01-099-8051 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Sat, Aug 23, 1980