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PartsTable / MRO / 77A109758
77A109758 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

The 77A109758 is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: CHAMFERED OUTSIDE RIGHT CORNER, flange_width: 0.1805 INCHES MINIMUM AND 0.1945 INCHES MAXIMUM IN, overall_length: 1.1250 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 1.1250 INCHES MINIMUM AND 1.1260 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-665-1006, 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→ 77A109758
NSN: 6145-01-665-1006
FSC: 6145
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeCHAMFERED OUTSIDE RIGHT CORNER
flange_width0.1805 INCHES MINIMUM AND 0.1945 INCHES MAXIMUM IN
overall_length1.1250 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.1250 INCHES MINIMUM AND 1.1260 INCHES MAXIMUM IN
body_outside_diameter1.4375 INCHES MINIMUM AND 1.4380 INCHES MAXIMUM IN
flange_outside_diameter1.5860 INCHES MINIMUM AND 1.6000 INCHES MAXIMUM IN
NSN6145-01-665-1006
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 77A109758 · OEM ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
55122Interchangeable
interchangeable cross-reference
interchangeable
43-1781Interchangeable
interchangeable cross-reference
interchangeable
48943Interchangeable
interchangeable cross-reference
interchangeable
94414Interchangeable
interchangeable cross-reference
interchangeable
T7180Interchangeable
interchangeable cross-reference
interchangeable
45315Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77A109758?
77A109758 is a 77A109758. It is classified as a MRO (MRO_GENERAL).
What parts can replace 77A109758?
There are 8 known substitutes for 77A109758: 55122, 43-1781, 48943 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77A109758?
77A109758 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-665-1006. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026