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Technical Data Sheet
PartsTable / COMPONENT / BA-31
BA-31 ✓ 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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, body_length: 0.938 INCHES NOMINAL IN, overall_width: 0.813 INCHES NOMINAL IN, terminal_type: STUD W/NUT TOP, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-00-120-1019, 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
BA-31
NSN: 6135-00-120-1019
FSC: 6135
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
body_length0.938 INCHES NOMINAL IN
overall_width0.813 INCHES NOMINAL IN
terminal_typeSTUD W/NUT TOP
inclosure_typeFULLY INCLOSED
overall_height3.156 INCHES NOMINAL IN
overall_length2.438 INCHES NOMINAL IN
inside_diameter0.031 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
special_featuresSINGLE CELL
NSN6135-00-120-1019
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN BA-31 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: NO.BA-31 TYPE
•
TERMINAL QUANTITY: 2
•
AMPERE HOUR CAPACITY: 15.75
•
TIME CAPACITY IN HOURS: 22.50
•
TERMINAL TYPE: STUD W/NUT TOP
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATANO.BA-31 TYPE
TERMINAL QUANTITY2
OVERALL LENGTH2.438 INCHES NOMINAL IN
OVERALL HEIGHT3.156 INCHES NOMINAL IN
AMPERE HOUR CAPACITY15.75
OVERALL WIDTH0.813 INCHES NOMINAL IN
TIME CAPACITY IN HOURS22.50
TERMINAL TYPESTUD W/NUT TOP
SPECIAL FEATURESSINGLE CELL
VOLTAGE IN VOLTS1.4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
781Interchangeable
interchangeable cross-reference
interchangeable
5360Interchangeable
interchangeable cross-reference
interchangeable
1888558-2Interchangeable
interchangeable cross-reference
interchangeable
1192Interchangeable
interchangeable cross-reference
interchangeable
FA4945Interchangeable
interchangeable cross-reference
interchangeable
XTRABOND 250 PREMIER INDUSTRIALInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BA-31?
BA-31 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace BA-31?
There are 24 known substitutes for BA-31: 781, 5360, 1888558-2 and 21 more. Substitute compatibility should be verified for your specific system.
Is BA-31 still available?
BA-31 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026