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Technical Data Sheet
77-1B ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BOX CONNECTOR,ELECTRICAL is a the manufacturer industrial component. Key specifications include length: 30.000 FEET MINIMUM AND 40.000 FEET MAXIMUM FT, end_type: EXTERNAL THREAD SECOND END, material: ALUMINUM ALLOY 5086, heat_treatment: H-111 STRAIN HARDENED, overall_height: 3.000 INCHES NOMINAL IN, first_tip_style: LOWER RADIUS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-042-7138, 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
77-1B
NSN: 5975-00-042-7138
FSC: 5975
CAGE: 72971 — EFCOR INC
SPECIFICATIONS
length30.000 FEET MINIMUM AND 40.000 FEET MAXIMUM FT
end_typeEXTERNAL THREAD SECOND END
materialALUMINUM ALLOY 5086
heat_treatmentH-111 STRAIN HARDENED
overall_height3.000 INCHES NOMINAL IN
first_tip_styleLOWER RADIUS
furnished_itemsINSULATED BUSHING AND LOCKNUT
deflection_angle90.0 DEGREES
first_tip_radius0.250 INCHES NOMINAL IN
second_tip_styleUPPER RADIUS
style_designatorANGLE
top_flange_width2.688 INCHES NOMINAL IN
NSN5975-00-042-7138
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOX CONNECTOR,ELECTRICAL TITLE COMPONENT PN 77-1B MFR BOX CONNECTOR,ELECTRIC
KEY FEATURES
LEG END TO PLANE OF BEND DISTANCE: 0.687 INCHES NOMINAL SECOND END IN
CONDUIT TYPE ACCOMMODATED: RIGID METALLIC THINWALL FIRST END
MATERIAL: IRON MALLEABLE
ITEM ACCOMMODATED TRADE SIZE: 0.750 INCHES FIRST END IN
FURNISHED ITEMS: INSULATED BUSHING AND LOCKNUT
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION: RAINTIGHT-NEMA TYPE 3R
STYLE DESIGNATOR: ANGLE
END TYPE: EXTERNAL THREAD SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
LEG END TO PLANE OF BEND DISTANCE0.687 INCHES NOMINAL SECOND END IN
CONDUIT TYPE ACCOMMODATEDRIGID METALLIC THINWALL FIRST END
MATERIALIRON MALLEABLE
ITEM ACCOMMODATED TRADE SIZE0.750 INCHES FIRST END IN
FURNISHED ITEMSINSULATED BUSHING AND LOCKNUT
HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTIONRAINTIGHT-NEMA TYPE 3R
STYLE DESIGNATORANGLE
END TYPEEXTERNAL THREAD SECOND END
LEG END TO PLANE OF BEND DISTANCE0.812 INCHES NOMINAL FIRST END IN
DEFLECTION ANGLE90.0 DEGREES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
101002XXInterchangeable
interchangeable cross-reference
interchangeable
1139900015Interchangeable
interchangeable cross-reference
interchangeable
W2580Interchangeable
interchangeable cross-reference
interchangeable
60-5198Interchangeable
interchangeable cross-reference
interchangeable
771BInterchangeable
interchangeable cross-reference
interchangeable
424-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77-1B?
77-1B is a BOX CONNECTOR,ELECTRICAL.
What parts can replace 77-1B?
There are 16 known substitutes for 77-1B: 101002XX, 1139900015, W2580 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77-1B?
77-1B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-042-7138. This indicates validated use in U.S. government and defense supply chains.
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