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A9939-1 — CONNECTOR,PLUG,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A9939-1: CONNECTOR,PLUG,ELECTRICAL.

The CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, end_similarity: NOT IDENTICAL, overall_length: 5.125 INCHES NOMINAL IN, first_end_style: SLOTTED, second_end_style: EXTERNAL THREADED, first_end_diameter: 0.5000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-284-6154, 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
A9939-1
NSN: 3040-01-284-6154
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
step_quantity2
end_similarityNOT IDENTICAL
overall_length5.125 INCHES NOMINAL IN
first_end_styleSLOTTED
second_end_styleEXTERNAL THREADED
first_end_diameter0.5000 INCHES NOMINAL IN
second_end_diameter0.2650 INCHES NOMINAL IN
first_end_slot_depth1.343 INCHES NOMINAL IN
first_end_slot_width0.265 INCHES NOMINAL IN
largest_step_diameter0.500 INCHES NOMINAL IN
second_end_external_thread_length0.376 INCHES NOMINAL IN
NSN3040-01-284-6154
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,PLUG,ELECTRICAL TITLE COMPONENT PN A9939-1 MFR CONNECTOR,PLUG,ELECTRI
KEY FEATURES
•
SECOND END EXTERNAL THREAD LENGTH: 0.376 INCHES NOMINAL IN
•
STEP QUANTITY: 2
•
FIRST END DIAMETER: 0.5000 INCHES NOMINAL IN
•
SECOND END DIAMETER: 0.2650 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 0.500 INCHES NOMINAL IN
•
FIRST END SLOT WIDTH: 0.265 INCHES NOMINAL IN
•
FIRST END STYLE: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
SECOND END EXTERNAL THREAD LENGTH0.376 INCHES NOMINAL IN
STEP QUANTITY2
FIRST END DIAMETER0.5000 INCHES NOMINAL IN
SECOND END DIAMETER0.2650 INCHES NOMINAL IN
LARGEST STEP DIAMETER0.500 INCHES NOMINAL IN
FIRST END SLOT WIDTH0.265 INCHES NOMINAL IN
FIRST END STYLESLOTTED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH5.125 INCHES NOMINAL IN
END SIMILARITYNOT IDENTICAL
SUBSTITUTES & CROSS-REFERENCES 1
A9939Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 A9939-1?
A9939-1 is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace A9939-1?
There is 1 known substitute for A9939-1: A9939. Substitute compatibility should be verified for your specific system.
What is the NSN for A9939-1?
A9939-1 is cataloged in the U.S. Government catalog under NSN 3040-01-284-6154. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.