2900851-3 — ATTENUATOR,VARIABLE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

2900851-3: ATTENUATOR,VARIABLE.

The ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include body_style: IRREGULAR, overall_width: 2.500 INCHES NOMINAL IN, overall_height: 1.380 INCHES NOMINAL IN, overall_length: 6.610 INCHES NOMINAL IN, frequency_range: 3.100 GIGAHERTZ MINIMUM AND 3.500 GIGAHERTZ MAXIMUM, application_design: TRANSMISSION LINE. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-260-4167, 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

2900851-3

NSN: 5985-01-260-4167
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

body_style	IRREGULAR
overall_width	2.500 INCHES NOMINAL IN
overall_height	1.380 INCHES NOMINAL IN
overall_length	6.610 INCHES NOMINAL IN
frequency_range	3.100 GIGAHERTZ MINIMUM AND 3.500 GIGAHERTZ MAXIMUM
application_design	TRANSMISSION LINE
step_position_quantity	5
impedance_rating_in_ohms	50.0 INPUT-OUTPUT
mounting_thread_quantity	56 PER INCH
mounting_facility_pattern	EIGHT POSITION RECTANGULAR
terminal_type_and_quantity	2 CONNECTOR, COAXIAL, FEMALE AND 1 CONNECTOR, RECEPTACLE
voltage_standing_wave_ratio	1.30
NSN	5985-01-260-4167

COMPONENT DIAGRAM

KEY FEATURES

•

IMPEDANCE RATING IN OHMS: 50.0 INPUT-OUTPUT

•

MOUNTING FACILITY TYPE AND QUANTITY: 8 THREADED HOLE(S)

•

FREQUENCY RANGE: 3.100 GIGAHERTZ MINIMUM AND 3.500 GIGAHERTZ MAXIMUM

•

BODY STYLE: IRREGULAR

•

ATTENUATION ACCURACY REFERENCE FREQUENCY: 3.3 GIGAHERTZ

•

MOUNTING FACILITY PATTERN: EIGHT POSITION RECTANGULAR

•

ADJUSTMENT DEVICE TYPE AND QUANTITY: 1 ELECTRONIC, CURRENT CONTROLLED AND 1 ELECTRONIC, VOLTAGE CONTROLLED

TECHNICAL CHARACTERISTICS

IMPEDANCE RATING IN OHMS	50.0 INPUT-OUTPUT
MOUNTING FACILITY TYPE AND QUANTITY	8 THREADED HOLE(S)
OVERALL HEIGHT	1.380 INCHES NOMINAL IN
FREQUENCY RANGE	3.100 GIGAHERTZ MINIMUM AND 3.500 GIGAHERTZ MAXIMUM
BODY STYLE	IRREGULAR
ATTENUATION ACCURACY REFERENCE FREQUENCY	3.3 GIGAHERTZ
MOUNTING FACILITY PATTERN	EIGHT POSITION RECTANGULAR
ADJUSTMENT DEVICE TYPE AND QUANTITY	1 ELECTRONIC, CURRENT CONTROLLED AND 1 ELECTRONIC, VOLTAGE CONTROLLED
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	5.350 INCHES NOMINAL IN
OVERALL ATTENUATION RANGE IN DECIBELS	+2.0 TO 62.0

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 2

5056-K77Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

DA-A13SSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 2900851-3?

2900851-3 is a ATTENUATOR,VARIABLE.

What parts can replace 2900851-3?

There are 2 known substitutes for 2900851-3: 5056-K77, DA-A13S. Substitute compatibility should be verified for your specific system.

What is the NSN for 2900851-3?

2900851-3 is cataloged in the U.S. Government catalog under NSN 5985-01-260-4167. This indicates validated use in U.S. government and defense supply chains.

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