255985-1

View detailed technical data, stock status, and sourcing information for: 255985-1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

National Stock Number

5985-00-134-1555

Item Name Code

00305

Assigment Date

01/15/1974 (52 years ago)

An item consisting of one or more definite lengths of straight or formed, flexible or rigid, prefabricated hollow tubing of conductive material. The tubing has a predetermined cross section and is designed to guide or conduct high frequency electromagnetic energy through its interior. One or more ends are terminated. May include common mounting of a switch, wave guide, a dummy load, electrical and other components such as waveguide section, cable terminal chamber and the like. Excludes:coupler,rotary,radio frequency; coupler, directional; adapter,waveguide; and tuner, waveguide.

right-hand all flanges all connection facilities thread direction, internal, rectangular external, rectangular cross-sectional shape style, 2 flange quantity, seamless single tubing segment tubing wall construction style, 2b all flanges all connection facilities thread class

Product Characteristics

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

Cross-Sectional Shape Style: internal, rectangular external, rectangular
Thread Class: 2b all flanges all connection facilities
Thread Direction: right-hand all flanges all connection facilities
Tubing Wall Construction Style: seamless single tubing segment
Flange Quantity: 2
Flange Inside Width: 0.896 inches minimum and 0.904 inches maximum all flanges
Flange Inside Height: 0.396 inches minimum and 0.404 inches maximum all flanges
Flange Outside Width: 1.610 inches minimum and 1.640 inches maximum all flanges
Flange Outside Height: 1.610 inches minimum and 1.640 inches maximum all flanges
Flange Inside Diameter: 1.406 inches minimum and 1.437 inches maximum all flanges
Flange Depth: 0.423 inches minimum and 0.453 inches maximum all flanges
Voltage Standing Wave Ratio: 1.15
Insertion Loss In Decibels: 0.20
Thread Quantity Per Inch: 32 all flanges all connection facilities
Maximum Operating Pressure: 30.0 pounds per square inch gage
Waveguide Outside Width: 0.996 inches minimum and 1.004 inches maximum
Nominal Thread Size: 0.164 inches all flanges all connection facilities
Waveguide Inside Width: 0.896 inches minimum and 0.904 inches maximum
Waveguide Inside Height: 0.396 inches minimum and 0.404 inches maximum
Waveguide Outside Height: 0.496 inches minimum and 0.504 inches maximum
Flange Connecting Facility And Quantity: 4 threaded hole all flanges all connection facilities
Waveguide First Leg Length: 18.500 inches nominal
Waveguide Fifth Leg Length: 2.750 inches nominal
Flange Style: choke type all flanges
Waveguide Second Leg Length: 3.500 inches nominal
Waveguide Third Leg Length: 10.930 inches nominal
Waveguide Fourth Leg Length: 3.500 inches nominal
Special Features: frequency range 8.2 to 12.4 ghz
Flexibility: flexible single tubing segment
Material: aluminum alloy all flange
Material: copper alloy single tubing segment
Precious Material And Location: internal surfaces silver
Precious Material: silver
Surface Treatment: chromate and primer all tubing segment and flange outside surfaces
Surface Treatment: silver all tubing segment and flange inside surfaces
Style Designator: four bend type
Thread Series Designator: unc all flanges all connection facilities
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
255985-1	Waveguide Assembly
TS645479	Waveguide Assembly
XF1004-1	Waveguide Assembly

FAQs

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

What is the FSCG of the NSN 5985-00-134-1555?

The FSCG of the NSN 5985-00-134-1555 is 5985

Does the NSN 5985-00-134-1555 have a Schedule B code assigned?

Yes, the Schedule B code is 8529109000

Does NSN 5985-00-134-1555 require demilitarization?

Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).

Does NSN 5985-00-134-1555 contain precious materials?

Item contains silver.

Does NSN 5985-00-134-1555 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 5985-00-134-1555 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Tue, Jan 15, 1974