R91A3N — COUPLER,DIRECTIONAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

R91A3N: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: WAVEGUIDE, design_type: BIDIRECTIONAL, usage_design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING, overall_width: 1.970 INCHES MAXIMUM IN, overall_height: 4.500 INCHES MAXIMUM IN, overall_length: 10.940 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-031-3641, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

R91A3N

NSN: 5985-00-031-3641
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 06351 — MICROWAVE ENGINEERING CORPORATION (USA)

SPECIFICATIONS

unit_type	WAVEGUIDE
design_type	BIDIRECTIONAL
usage_design	MAIN LINE AND SECONDARY LINE TERMINAL FITTING
overall_width	1.970 INCHES MAXIMUM IN
overall_height	4.500 INCHES MAXIMUM IN
overall_length	10.940 INCHES MAXIMUM IN
identifying_number	TERMINAL FITTING TYPE N; PART NO. MRC475G1; PART NO. MRC4751
power_loss_in_decibels	30.0
terminal_fitting_controlling_agency	WESTINGHOUSE ELECTRIC CORP
NSN	5985-00-031-3641

COMPONENT DIAGRAM

KEY FEATURES

•

TERMINAL FITTING CONTROLLING AGENCY: WESTINGHOUSE ELECTRIC CORP

•

USAGE DESIGN: MAIN LINE AND SECONDARY LINE TERMINAL FITTING

•

POWER LOSS IN DECIBELS: 30.0

•

IDENTIFYING NUMBER: TERMINAL FITTING TYPE N; PART NO. MRC475G1; PART NO. MRC4751

•

DESIGN TYPE: BIDIRECTIONAL

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	4.500 INCHES MAXIMUM IN
TERMINAL FITTING CONTROLLING AGENCY	WESTINGHOUSE ELECTRIC CORP
USAGE DESIGN	MAIN LINE AND SECONDARY LINE TERMINAL FITTING
POWER LOSS IN DECIBELS	30.0
IDENTIFYING NUMBER	TERMINAL FITTING TYPE N; PART NO. MRC475G1; PART NO. MRC4751
DESIGN TYPE	BIDIRECTIONAL
OVERALL LENGTH	10.940 INCHES MAXIMUM IN
OVERALL WIDTH	1.970 INCHES MAXIMUM IN
UNIT TYPE	WAVEGUIDE

OTHER ITEMS IN FSC 5985 — Antennas, Waveguides, and Related Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5985-00-001-1854 5985-00-001-1862 5985-00-001-1869 5985-00-001-1870 5985-00-001-1871 5985-00-001-1874 5985-00-001-1875 5985-00-001-1876

SUBSTITUTES & CROSS-REFERENCES 1

990C090H02Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is R91A3N?

R91A3N is a COUPLER,DIRECTIONAL.

What parts can replace R91A3N?

There is 1 known substitute for R91A3N: 990C090H02. Substitute compatibility should be verified for your specific system.

What is the NSN for R91A3N?

R91A3N is cataloged in the U.S. Government catalog under NSN 5985-00-031-3641. This indicates validated use in U.S. government and defense supply chains.

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R91A3N — COUPLER,DIRECTIONAL

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