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604876 — ROLLER ASSEMBLY,TELESCOPING TUBE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

604876: ROLLER ASSEMBLY,TELESCOPING TUBE.

ROLLER ASSEMBLY,TELESCOPING TUBE. Key specifications include material: STEEL AND WOOL SEAL, seal_type: LABYRINTH, block_type: FIXED, bore_diameter: 1.0000 INCHES NOMINAL IN, seal_location: BOTH ENDS, alignment_type: SELF-ALIGNING. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-419-0886, 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
604876
NSN: 3130-00-419-0886
NIINs: 004190886, 011102694
FSC: 3130 — Bearings, Mounted
CAGE: 09455 — RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS (USA)
SPECIFICATIONS
materialSTEEL AND WOOL SEAL
seal_typeLABYRINTH
block_typeFIXED
bore_diameter1.0000 INCHES NOMINAL IN
seal_locationBOTH ENDS
alignment_typeSELF-ALIGNING
housing_length1.1875 INCHES NOMINAL IN
pilot_diameter3.0000 INCHES NOMINAL IN
shaft_end_typeOPEN
housing_diameter4.3750 INCHES NOMINAL IN
features_providedGROUND ROLLING ELEMENT GROOVE
mounting_hole_typeROUND, UNTHREADED
NSN3130-00-419-0886
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 604876 · OEM ⚠ 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
KEY FEATURES
•
SEAL TYPE: LABYRINTH
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION FITTING TYPE: HYDRAULIC
•
ASSEMBLY OVERALL LENGTH: 1.5625 INCHES NOMINAL IN
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
ROTATING ELEMENT LOCKING METHOD: DIRECT
•
SEAL LOCATION: BOTH ENDS
TECHNICAL CHARACTERISTICS
SEAL TYPELABYRINTH
LUBRICATION MATERIALGREASE
LUBRICATION FITTING TYPEHYDRAULIC
ASSEMBLY OVERALL LENGTH1.5625 INCHES NOMINAL IN
INTERNAL FIT-UP DESIGNATIONSTANDARD
MOUNTING HOLE TYPEROUND, UNTHREADED
ROTATING ELEMENT LOCKING METHODDIRECT
SEAL LOCATIONBOTH ENDS
BLOCK TYPEFIXED
STYLE DESIGNATORFLANGE CARTRIDGE BLOCK
SUBSTITUTES & CROSS-REFERENCES 2
HR/3/739433Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MFC16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 604876?
604876 is a ROLLER ASSEMBLY,TELESCOPING TUBE.
What parts can replace 604876?
There are 2 known substitutes for 604876: HR/3/739433, MFC16. Substitute compatibility should be verified for your specific system.
What is the NSN for 604876?
604876 is cataloged in the U.S. Government catalog under NSN 3130-00-419-0886. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.