PartsTable
Technical Data Sheet
Download PDF

B-18-8 — BEARING,ROLLER,NEEDLE

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

B-18-8: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include jaw_type: CURVED, material: STEEL CORROSION RESISTING OVERALL, bore_diameter: 1.1250 INCHES NOMINAL IN, overall_width: 0.500 INCHES NOMINAL IN, alignment_type: RIGID, overall_height: 1.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-112-5781, 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→ B-18-8
NSN: 3110-00-112-5781
NIINs: 001125781, 001203089, 007694978, 015836378, 016828149
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
jaw_typeCURVED
materialSTEEL CORROSION RESISTING OVERALL
bore_diameter1.1250 INCHES NOMINAL IN
overall_width0.500 INCHES NOMINAL IN
alignment_typeRIGID
overall_height1.000 INCHES NOMINAL IN
overall_length18.0 CENTIMETERS NOMINAL CM
voltage_rating5000.0 DC MAXIMUM RATED WORKING VOLTAGE SINGLE CONDUCTOR
outside_diameter0.144 INCHES NOMINAL SINGLE CONDUCTOR IN
special_featuresMICROSURGICAL NEEDLE HOLDER; BARRAQUER-TYPE, HINGED; CURVED JAW; LENGTH: 18 CM; NON-LOCKING STYLE; 8.0 MM DIAMETER ROUND HANDLES; STAINLESS STEEL MM
termination_typeCONNECTOR BOTH ENDS SINGLE CONDUCTOR
design_designationBARRAQUER
NSN3110-00-112-5781
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: B-18-8 · 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
•
OVERALL OUTSIDE DIAMETER: 1.3750 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
BORE DIAMETER: 1.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL OUTSIDE DIAMETER1.3750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER1.1250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
444916Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy B-18-8?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is B-18-8?
B-18-8 is a BEARING,ROLLER,NEEDLE. It is classified as a MRO (MRO_GENERAL).
What parts can replace B-18-8?
There is 1 known substitute for B-18-8: 444916. Substitute compatibility should be verified for your specific system.
What is the NSN for B-18-8?
B-18-8 is cataloged in the U.S. Government catalog under NSN 3110-00-112-5781. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — B-18-8

✓ PartsTable — the parts reference. Every fact cited to its source.
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.