PartsTable
Technical Data Sheet
4977 ✓ Verified by PartsTable
Zyxel · 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 BEARING,BALL,ANNULAR is a Zyxel industrial component. Key specifications include body_style: ANGLE, SHAPE, INTERNAL COUPLING, shell_type: SOLID, terminal_type: CRIMP SINGLE MATING END SINGLE CONTACT GROUPING, overall_height: 1.090 INCHES MAXIMUM IN, overall_length: 1.610 INCHES MAXIMUM IN, shell_material: COPPER ALLOY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-197-3412, 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 4977
NSN: 6145-01-197-3412
FSC: 6145
CAGE: 29365 — ASTRO INDUSTRIES INC (USA)
SPECIFICATIONS
body_styleANGLE, SHAPE, INTERNAL COUPLING
shell_typeSOLID
terminal_typeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
overall_height1.090 INCHES MAXIMUM IN
overall_length1.610 INCHES MAXIMUM IN
shell_materialCOPPER ALLOY
insert_materialPLASTIC POLYTETRAFLUOROETHYLENE SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
overall_diameter0.570 INCHES NOMINAL IN
precious_materialGOLD
terminal_locationSIDE SINGLE MATING END SINGLE CONTACT GROUPING
mating_end_quantity1
NSN6145-01-197-3412
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 4977 · Zyxel ⚠ 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
KEY FEATURES
CONDUCTOR QUANTITY: 4
MATERIAL: COPPER CORE CONDUCTOR ALL CONDUCTORS
PRECIOUS MATERIAL AND LOCATION: SURFACE ALL CONDUCTORS SILVER AND SURFACE SHIELD BRAID SILVER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B298 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR ALL CONDUCTORS
COLOR: WHITE FIRST POSITION JACKET CABLE
VOLTAGE RATING: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
TECHNICAL CHARACTERISTICS (FLIS)
CONDUCTOR QUANTITY4
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
MATERIALCOPPER FIRST POSITION SHIELD BRAID METALLIC CABLE
PRECIOUS MATERIAL AND LOCATIONSURFACE ALL CONDUCTORS SILVER AND SURFACE SHIELD BRAID SILVER
SPECIAL FEATURESPRIMARY INSULATION CONFORMS TO L-P-403 TYPE 3
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B298 ASSN STD SINGLE TREATMENT RESPONSE CORE CONDUCTOR ALL CONDUCTORS
COLORWHITE FIRST POSITION JACKET CABLE
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
ROUND CONDUCTOR SIZE26 AWG ALL CONDUCTORS
SURFACE TREATMENTSILVER CORE CONDUCTOR ALL CONDUCTORS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
J-C-580Upgraded Successor
successor cross-reference
successor
J-C-580S6CK3/14SRSJUpgraded Successor
successor cross-reference
successor
3412Upgraded Successor
successor cross-reference
successor
5330-052000Interchangeable
interchangeable cross-reference
interchangeable
4977Interchangeable
interchangeable cross-reference
interchangeable
42746DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4977?
4977 is a BEARING,BALL,ANNULAR manufactured by Zyxel. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4977?
There are 19 known substitutes for 4977: J-C-580, J-C-580S6CK3/14SRSJ, 3412 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4977?
4977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-197-3412. This indicates validated use in U.S. government and defense supply chains.
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