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A51A9161-1 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

A51A9161-1: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_width: 2.000 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 4.125 INCHES NOMINAL IN, input_terminal_identification: UG568/U, output_terminal_identification: UG290A/U. This part is cataloged in the U.S.

Government catalog under NSN 5915-00-283-1664, 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
MRO→ MRO_GENERAL→ A51A9161-1
NSN: 5915-00-283-1664
FSC: 5915 — Filters and Networks
CAGE: 61174 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
body_width2.000 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height1.000 INCHES NOMINAL IN
overall_length4.125 INCHES NOMINAL IN
input_terminal_identificationUG568/U
output_terminal_identificationUG290A/U
input_terminal_manufacturer_code80058
output_terminal_manufacturer_code80058
mounting_facility_type_and_quantity1 CONNECTOR LOCATION NOT OTHERWISE SPECIFIED
functional_terminal_type_and_quantity1 CONNECTOR, RECEPTACLE OUTPUT SECOND FUNCTION
distance_between_centerlines_of_mounting_facilities_parallel_to_body_width2.555 INCHES MINIMUM AND 2.565 INCHES MAXIMUM IN
distance_between_centerlines_of_mounting_facilities_parallel_to_body_length1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
NSN5915-00-283-1664
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN A51A9161-1 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 CONNECTOR LOCATION NOT OTHERWISE SPECIFIED
•
INCLOSURE TYPE: ENCASED
•
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
•
OUTPUT TERMINAL IDENTIFICATION: UG290A/U
•
FUNCTIONAL TERMINAL TYPE AND QUANTITY: 1 CONNECTOR, RECEPTACLE OUTPUT SECOND FUNCTION
•
BODY WIDTH: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 CONNECTOR LOCATION NOT OTHERWISE SPECIFIED
OVERALL HEIGHT1.000 INCHES NOMINAL IN
INCLOSURE TYPEENCASED
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH1.995 INCHES MINIMUM AND 2.005 INCHES MAXIMUM IN
OUTPUT TERMINAL IDENTIFICATIONUG290A/U
FUNCTIONAL TERMINAL TYPE AND QUANTITY1 CONNECTOR, RECEPTACLE OUTPUT SECOND FUNCTION
FUNCTIONAL TERMINAL TYPE AND QUANTITY1 CONNECTOR, RECEPTACLE INPUT FIRST FUNCTION
BODY WIDTH2.000 INCHES NOMINAL IN
OUTPUT TERMINAL MANUFACTURER CODE80058
OVERALL LENGTH4.125 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5915 — Filters and Networks
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5915-00-000-0148 5915-00-001-1389 5915-00-001-1621 5915-00-001-2789 5915-00-001-2928 5915-00-001-2936 5915-00-001-3003 5915-00-001-3117
SUBSTITUTES & CROSS-REFERENCES 1
RF5869Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A51A9161-1?
A51A9161-1 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A51A9161-1?
There is 1 known substitute for A51A9161-1: RF5869. Substitute compatibility should be verified for your specific system.
What is the NSN for A51A9161-1?
A51A9161-1 is cataloged in the U.S. Government catalog under NSN 5915-00-283-1664. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.