FC 1251 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

FC 1251: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_length: 1.625 INCHES MINIMUM IN, inclosure_type: ENCASED, overall_length: 2.000 INCHES MAXIMUM IN, style_designator: ROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES, nominal_thread_size: 0.250 INCHES IN, operating_temp_range: -55.0 TO 85.0 CELSIUS DEGC. This part is cataloged in the U.S.

Government catalog under NSN 5915-00-903-2977, 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→ FC 1251

NSN: 5915-00-903-2977
FSC: 5915 — Filters and Networks
CAGE: 56528 — FIL-COIL INTERNATIONAL LLC (USA)

SPECIFICATIONS

body_length	1.625 INCHES MINIMUM IN
inclosure_type	ENCASED
overall_length	2.000 INCHES MAXIMUM IN
style_designator	ROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES
nominal_thread_size	0.250 INCHES IN
operating_temp_range	-55.0 TO 85.0 CELSIUS DEGC
body_outside_diameter	0.670 INCHES MINIMUM IN
load_impedance_per_function	50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
maximum_voltage_drop_per_function	0.075 MILLIVOLTS AC BLANK LOCATION NOT OTHERWISE SPECIFIED
mounting_facility_type_and_quantity	1 THREADED BUSHING LOCATION NOT OTHERWISE SPECIFIED
source_impedance_rating_per_function	50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
functional_terminal_type_and_quantity	1 TAB, SOLDER LUG OUTPUT SECOND FUNCTION
NSN	5915-00-903-2977

COMPONENT DIAGRAM

KEY FEATURES

•

MOUNTING FACILITY TYPE AND QUANTITY: 1 THREADED BUSHING LOCATION NOT OTHERWISE SPECIFIED

•

INCLOSURE TYPE: ENCASED

•

POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ: 400.0 BLANK LOCATION NOT OTHERWISE SPECIFIED

•

FUNCTIONAL TERMINAL TYPE AND QUANTITY: 1 TAB, SOLDER LUG INPUT FIRST FUNCTION

•

BODY OUTSIDE DIAMETER: 0.670 INCHES MINIMUM IN

•

SOURCE IMPEDANCE RATING PER FUNCTION: 50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED

•

MAXIMUM VOLTAGE DROP PER FUNCTION: 0.075 MILLIVOLTS AC BLANK LOCATION NOT OTHERWISE SPECIFIED

TECHNICAL CHARACTERISTICS

MOUNTING FACILITY TYPE AND QUANTITY	1 THREADED BUSHING LOCATION NOT OTHERWISE SPECIFIED
INCLOSURE TYPE	ENCASED
POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ	400.0 BLANK LOCATION NOT OTHERWISE SPECIFIED
FUNCTIONAL TERMINAL TYPE AND QUANTITY	1 TAB, SOLDER LUG INPUT FIRST FUNCTION
FUNCTIONAL TERMINAL TYPE AND QUANTITY	1 TAB, SOLDER LUG OUTPUT SECOND FUNCTION
BODY OUTSIDE DIAMETER	0.670 INCHES MINIMUM IN
SOURCE IMPEDANCE RATING PER FUNCTION	50.0 OHMS BLANK LOCATION NOT OTHERWISE SPECIFIED
MAXIMUM VOLTAGE DROP PER FUNCTION	0.075 MILLIVOLTS AC BLANK LOCATION NOT OTHERWISE SPECIFIED
STYLE DESIGNATOR	ROUND TERMINAL/TERMINALS ON OPPOSITE SURFACES
MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR	UNF

SUBSTITUTES & CROSS-REFERENCES 4

SB2090Reference document

Same NSN cross-reference

Reference document — Secondary reference

SP166Reference document

Same NSN cross-reference

Reference document — Secondary reference

RF02443Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

RF2443Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

HAZMAT per U.S. Government catalogAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is FC 1251?

FC 1251 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).

What parts can replace FC 1251?

There are 4 known substitutes for FC 1251: SB2090, SP166, RF02443 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for FC 1251?

FC 1251 is cataloged in the U.S. Government catalog under NSN 5915-00-903-2977. This indicates validated use in U.S. government and defense supply chains.

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