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Technical Data Sheet
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188-7 — Technical Data Sheet

✓ Verified by PartsTable
Giochi Preziosi · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: PLASTIC POLYCARBONATE LENS, body_style: WEBBED, OFFSET, SOLID, bore_style: STRAIGHT SPLINE BOTH ENDS, case_style: SQUARE, cone_width: 0.8820 INCHES NOMINAL IN, seal_width: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3110-00-101-0801, 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→ 188-7
NSN: 3110-00-101-0801
FSC: 3110
CAGE: 42138 — HARBORMASTER MARINE, INC (USA)
SPECIFICATIONS
materialPLASTIC POLYCARBONATE LENS
body_styleWEBBED, OFFSET, SOLID
bore_styleSTRAIGHT SPLINE BOTH ENDS
case_styleSQUARE
cone_width0.8820 INCHES NOMINAL IN
seal_width0.500 INCHES NOMINAL IN
teeth_typeSINGLE HELIX
tooth_formSTANDARD
design_typeDOUBLE APERTURE
helix_angle30.0000 DEGREES
margin_size0.25 INCHES MINIMUM IN
margin_typeADJUSTABLE
NSN3110-00-101-0801
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 188-7 · Giochi Preziosi ⚠ 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
•
CONE WIDTH: 0.8820 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 1.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE CORNER RADIUS: 0.0300 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS
CONE WIDTH0.8820 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
BORE DIAMETER1.2500 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE CORNER RADIUS0.0300 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
25577InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
350-218InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
H1617-92AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7029370InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
E-R8-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
690InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 188-7?
188-7 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E manufactured by Giochi Preziosi. It is classified as a MRO (MRO_GENERAL).
What parts can replace 188-7?
There are 19 known substitutes for 188-7: 25577, 350-218, H1617-92A and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 188-7?
188-7 is cataloged in the Federal Logistics Information System under NSN 3110-00-101-0801. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026