SM-D3-15-1257 — COUPLER,DIRECTIONAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

SM-D3-15-1257: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: TRANSMISSION LINE, design_type: UNIDIRECTIONAL, overall_width: 0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN, overall_height: 0.175 INCHES MAXIMUM IN, overall_length: 0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, special_features: VSWR: 1.5 TO 1 MAX; BASE IS ALUMINA. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-476-1051, 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

SM-D3-15-1257

NSN: 5985-01-476-1051
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 32252 — SIGNAL TECHNOLOGY CORPORATION DIV SYSTEMS OPERATION (USA)

SPECIFICATIONS

unit_type	TRANSMISSION LINE
design_type	UNIDIRECTIONAL
overall_width	0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
overall_height	0.175 INCHES MAXIMUM IN
overall_length	0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
special_features	VSWR: 1.5 TO 1 MAX; BASE IS ALUMINA
power_loss_in_decibels	0.75
radio_frequency_rating	20.0 MEGAHERTZ MINIMUM AND 1000.0 MEGAHERTZ MAXIMUM
end_item_identification	UNIVERSAL EXCITER UPGRADE
precious_material_and_location	PLATE FINISH GOLD
NSN	5985-01-476-1051

COMPONENT DIAGRAM

KEY FEATURES

•

POWER LOSS IN DECIBELS: 0.75

•

DESIGN TYPE: UNIDIRECTIONAL

•

RADIO FREQUENCY RATING: 20.0 MEGAHERTZ MINIMUM AND 1000.0 MEGAHERTZ MAXIMUM

•

UNIT TYPE: TRANSMISSION LINE

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.175 INCHES MAXIMUM IN
POWER LOSS IN DECIBELS	0.75
DESIGN TYPE	UNIDIRECTIONAL
RADIO FREQUENCY RATING	20.0 MEGAHERTZ MINIMUM AND 1000.0 MEGAHERTZ MAXIMUM
OVERALL LENGTH	0.490 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
OVERALL WIDTH	0.365 INCHES MINIMUM AND 0.405 INCHES MAXIMUM IN
UNIT TYPE	TRANSMISSION LINE
SPECIAL FEATURES	VSWR: 1.5 TO 1 MAX; BASE IS ALUMINA
PRECIOUS MATERIAL AND LOCATION	PLATE FINISH GOLD
END ITEM IDENTIFICATION	UNIVERSAL EXCITER UPGRADE

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

460283-1Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

460283Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is SM-D3-15-1257?

SM-D3-15-1257 is a COUPLER,DIRECTIONAL.

What parts can replace SM-D3-15-1257?

There are 2 known substitutes for SM-D3-15-1257: 460283-1, 460283. Substitute compatibility should be verified for your specific system.

What is the NSN for SM-D3-15-1257?

SM-D3-15-1257 is cataloged in the U.S. Government catalog under NSN 5985-01-476-1051. This indicates validated use in U.S. government and defense supply chains.

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SM-D3-15-1257 — COUPLER,DIRECTIONAL

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