M1681 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

M1681: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL OVERALL, body_width: 2.500 INCHES NOMINAL IN, body_height: 2.750 INCHES NOMINAL IN, body_length: 4.000 INCHES NOMINAL IN, body_material: METAL, bore_diameter: 1.0000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5915-01-166-7999, 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→ M1681

NSN: 5915-01-166-7999
NIINs: 011667999, 014062722
FSC: 5915 — Filters and Networks
CAGE: 59901 — MTK ELECTRONICS INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
body_width	2.500 INCHES NOMINAL IN
body_height	2.750 INCHES NOMINAL IN
body_length	4.000 INCHES NOMINAL IN
body_material	METAL
bore_diameter	1.0000 INCHES NOMINAL IN
overall_width	0.5000 INCHES NOMINAL IN
alignment_type	RIGID
inclosure_type	ENCASED
overall_height	3.750 INCHES NOMINAL IN
surface_finish	GROUND
style_designator	NON-SEPARABLE, WITH ROLLER RETAINER, CLOSED END, DRAWN SHELL
NSN	5915-01-166-7999

COMPONENT DIAGRAM

KEY FEATURES

•

MAXIMUM DIELECTRIC WITHSTANDING DC VOLTAGE: 1.0 KILOVOLTS AT SEA LEVEL

•

MOUNTING FACILITY TYPE AND QUANTITY: 4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED

•

INCLOSURE TYPE: ENCASED

•

DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH: 3.500 INCHES NOMINAL IN

•

POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ: 60.0 4TH RADIO INTERFERENCE FOURTH FUNCTION

TECHNICAL CHARACTERISTICS

MAXIMUM DIELECTRIC WITHSTANDING DC VOLTAGE	1.0 KILOVOLTS AT SEA LEVEL
MOUNTING FACILITY TYPE AND QUANTITY	4 THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
OVERALL HEIGHT	3.750 INCHES NOMINAL IN
INCLOSURE TYPE	ENCASED
DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH	3.500 INCHES NOMINAL IN
POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ	60.0 4TH RADIO INTERFERENCE FOURTH FUNCTION
POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ	60.0 3RD RADIO INTERFERENCE THIRD FUNCTION
POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ	60.0 2ND RADIO INTERFERENCE SECOND FUNCTION
POWER LINE FREQUENCY RATING PER FUNCTION IN HERTZ	60.0 1ST RADIO INTERFERENCE FIRST FUNCTION
FUNCTIONAL TERMINAL TYPE AND QUANTITY	1 CONNECTOR, RECEPTACLE INPUT FIRST FUNCTION

SUBSTITUTES & CROSS-REFERENCES 4

G228960-1Reference document

Same NSN cross-reference

Reference document — Secondary reference

EMI-F-0840-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

NF21764Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

EMI-F-0868Same 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)Demilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is M1681?

M1681 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).

What parts can replace M1681?

There are 4 known substitutes for M1681: G228960-1, EMI-F-0840-3, NF21764 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for M1681?

M1681 is cataloged in the U.S. Government catalog under NSN 5915-01-166-7999. This indicates validated use in U.S. government and defense supply chains.

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