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B1-5 — RESISTOR,VARIABLE,NONWIRE WOUND,

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

B1-5: RESISTOR,VARIABLE,NONWIRE WOUND,.

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include phase: THREE, material: COPPER ALLOY AND PLASTIC, body_style: HOLE MOUNT, body_width: 0.703 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN, bore_shape: STRAIGHT, drive_type: DIRECT. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-6155, 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→ B1-5
NSN: 3110-00-100-6155
NIINs: 001006155, 001043586, 001330897, 001448499, 001564097, 001971775, 002302387, 002374969, 002697851, 003566050, 004675199, 004784050, 005192037, 006177626, 006360472, 008711005, 010792898, 011263290, 012258350, 012442889, 015268168
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 90699 — UNIMASCO INC (USA)
SPECIFICATIONS
phaseTHREE
materialCOPPER ALLOY AND PLASTIC
body_styleHOLE MOUNT
body_width0.703 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
drive_typeDIRECT
duty_cycleCONTINUOUS
body_length1.453 INCHES MAXIMUM IN
skirt_styleSTEPPED
temp_rating-55.0 OPERATING CELSIUS AND 85.0 OPERATING CELSIUS AND 40.0 AMBIENT CELSIUS
current_typeDC INPUT
skirt_designNONDETACHABLE
NSN3110-00-100-6155
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B1-5 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
ROLLING ELEMENT DIAMETER: 0.3750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66,AISI/SAE E50100 FED STD 1ST MATERIAL RESPONSE OR 66,AISI/SAE E51100 FED STD 2ND MATERIAL RESPONSE OR 66,AISI/SAE E52100 FED STD 3RD MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.3750 INCHES NOMINAL IN
STYLE DESIGNATORBALL
MATERIAL DOCUMENT AND CLASSIFICATION66,AISI/SAE E50100 FED STD 1ST MATERIAL RESPONSE OR 66,AISI/SAE E51100 FED STD 2ND MATERIAL RESPONSE OR 66,AISI/SAE E52100 FED STD 3RD MATERIAL RESPONSE OVERALL
SPECIAL FEATURESAFBMA STANDARD TOLERANCE FOR BALLS,GRADE 24
MATERIALSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
HW128-11Reference document
Same NSN cross-reference
Reference document — Secondary reference
050004Reference document
Same NSN cross-reference
Reference document — Secondary reference
17012R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
KD696Reference document
Same NSN cross-reference
Reference document — Secondary reference
8527251Reference document
Same NSN cross-reference
Reference document — Secondary reference
051404Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B1-5?
B1-5 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace B1-5?
There are 9 known substitutes for B1-5: HW128-11, 050004, 17012R1 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1-5?
B1-5 is cataloged in the U.S. Government catalog under NSN 3110-00-100-6155. This indicates validated use in U.S. government and defense supply chains.
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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.