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334978 — BEARING,SLEEVE

✓ Government record, cited
GBC · BALL BEARING
PRODUCT OVERVIEW

334978: BEARING,SLEEVE.

For use with all Rexel and GBC standard comb binding machines. Size: A4. 21 Rings.

Capacity: 28mm (240 sheets). White. Boxed 50.

Key specifications include shape: TUBULAR, length: 0.500 INCHES NOMINAL IN, wall_thickness: 0.005 INCHES NOMINAL IN, inside_diameter: 0.375 INCHES NOMINAL IN, nondefinitive_spec/std_data: I TYPE AND 13 SIZE, part_name_assigned_by_controlling_agency: BAND COPPER DENTAL SIZE 13 12S. This part is cataloged in the U.S. Government catalog under NSN 3120-00-455-9998, 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
334978
NSN: 3120-00-455-9998
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
shapeTUBULAR
length0.500 INCHES NOMINAL IN
wall_thickness0.005 INCHES NOMINAL IN
inside_diameter0.375 INCHES NOMINAL IN
nondefinitive_spec/std_dataI TYPE AND 13 SIZE
part_name_assigned_by_controlling_agencyBAND COPPER DENTAL SIZE 13 12S
NSN3120-00-455-9998
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 334978 · GBC ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 3
18133PReference document
Same NSN cross-reference
Reference document — Secondary reference
40863Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HM40863Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 334978?
334978 is a BEARING,SLEEVE manufactured by GBC.
What parts can replace 334978?
There are 3 known substitutes for 334978: 18133P, 40863, HM40863. Substitute compatibility should be verified for your specific system.
What is the NSN for 334978?
334978 is cataloged in the U.S. Government catalog under NSN 3120-00-455-9998. This indicates validated use in U.S. government and defense supply chains.
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