SPECIALTY TAPES · Electronic Components
56-4
Specialty Tapes Tunnel Tape, Roll Size: 4 X 40 Yards, Color: Black/Yellow
Part Number56-4
ManufacturerSPECIALTY TAPES
AvailabilityAvailable to order — request a quote
Specifications
NSN3110-00-155-9618 (NSN)
Federal Item NameBEARING,BALL,ANNULAR
MaterialSTEEL BALL; STEEL OUTER RING
Overall Width0.1970 INCHES NOMINAL
Bore ShapeSTRAIGHT
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Bore Diameter0.2500 INCHES NOMINAL
Internal Fit Up DesignationSTANDARD
Overall Outside Diameter0.6250 INCHES NOMINAL
Load DirectionRADIAL
Standard Tolerance DesignationABEC NO.1
Surface FinishGROUND
Federal Supply Class3110 — Bearings, Antifriction, Unmounted
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is 56-4 available?
We can source 56-4 even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is 56-4 by SPECIALTY TAPES obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 56-4 has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like 56-4?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for 56-4?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.