C78-391 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

C78-391: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include base_style: TELEPHONE SLIDE NUMBER ONE, bulb_style: T (TUBULAR), overall_length: 1.687 INCHES MAXIMUM IN, voltage_rating: 18.000 VOLTS NOMINAL, wattage_rating: 0.720 WATTS, bulb_designator: T-2. This part is cataloged in the U.S.

Government catalog under NSN 6240-00-153-6515, 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

C78-391

NSN: 6240-00-153-6515
NIINs: 001536515, 001536517, 001557816, 001557819, 001557837, 001558002, 001561602, 001573724, 001791802, 001866251, 001866603, 001866608, 002287131, 002377877, 002465059, 002486517, 002669944, 002690946, 002690960, 002996762, 004987660, 004987669, 009955712
FSC: 6240 — Electric Lamps
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)

SPECIFICATIONS

base_style	TELEPHONE SLIDE NUMBER ONE
bulb_style	T (TUBULAR)
overall_length	1.687 INCHES MAXIMUM IN
voltage_rating	18.000 VOLTS NOMINAL
wattage_rating	0.720 WATTS
bulb_designator	T-2
special_features	840.END FOOT CANDLES
features_provided	FILAMENT SHIELDING AND HEAT RESISTANT GLASS
rated_average_life	NOT RATED
light_center_length	1.690 INCHES NOMINAL IN
light_output_rating	0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
filament_designation	C-21
NSN	6240-00-153-6515

COMPONENT DIAGRAM

KEY FEATURES

•

BULB LIGHT TRANSMISSION CHARACTERISTIC: TRANSPARENT

•

FILAMENT DESIGNATION: C-5

•

BASE STYLE: TELEPHONE SLIDE NUMBER ONE

•

RATED AVERAGE LIFE: INDEFINITE LONG

•

BULB DESIGNATOR: T-2

•

FILAMENT HEAVY DUTY SERVICE RATING: NOT RATED

•

WATTAGE RATING: 1.536 WATTS AND 1.824 WATTS

TECHNICAL CHARACTERISTICS

BULB LIGHT TRANSMISSION CHARACTERISTIC	TRANSPARENT
FILAMENT DESIGNATION	C-5
BASE STYLE	TELEPHONE SLIDE NUMBER ONE
RATED AVERAGE LIFE	INDEFINITE LONG
BULB DESIGNATOR	T-2
OVERALL LENGTH	1.687 INCHES MAXIMUM IN
FILAMENT HEAVY DUTY SERVICE RATING	NOT RATED
WATTAGE RATING	1.536 WATTS AND 1.824 WATTS
EMITTED LIGHT CHARACTERISTIC	COLORLESS
LIGHT OUTPUT RATING	750.000 FOOTCANDLES NOMINAL SINGLE RATING

SUBSTITUTES & CROSS-REFERENCES 8

6240PL1337383Reference document

Same NSN cross-reference

Reference document — Informative reference only

2140-0011Reference document

Same NSN cross-reference

Reference document — Secondary reference

59RAReference document

Same NSN cross-reference

Reference document — Secondary reference

DB81Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

CM48CReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

4895TDReference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is C78-391?

C78-391 is a FILTER,RADIO FREQUENCY INTERFERE.

What parts can replace C78-391?

There are 8 known substitutes for C78-391: 6240PL1337383, 2140-0011, 59RA and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for C78-391?

C78-391 is cataloged in the U.S. Government catalog under NSN 6240-00-153-6515. This indicates validated use in U.S. government and defense supply chains.

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