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Technical Data Sheet
PartsTable / COMPONENT / HF6
HF6 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY RACE INSERT, design_type: THREADED, shank_style: INTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE, thread_class: 3B, bore_diameter: 0.3745 INCHES MINIMUM AND 0.3765 INCHES MAXIMUM IN, overall_length: 2.1250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-433-4771, 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
HF6
NSN: 3120-00-433-4771
FSC: 3120
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY RACE INSERT
design_typeTHREADED
shank_styleINTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE
thread_class3B
bore_diameter0.3745 INCHES MINIMUM AND 0.3765 INCHES MAXIMUM IN
overall_length2.1250 INCHES NOMINAL IN
thread_diameter0.375 INCHES NOMINAL IN
overall_diameter0.875 INCHES NOMINAL IN
style_designatorBALL TYPE
thread_directionRIGHT-HAND
features_providedFLUSH LUBRICATION FITTING
inner_member_width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
NSN3120-00-433-4771
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: HF6 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MIL-C-5501/1Interchangeable
interchangeable cross-reference
interchangeable
NAS815-4AInterchangeable
interchangeable cross-reference
interchangeable
NAS833-4Interchangeable
interchangeable cross-reference
interchangeable
HF6Interchangeable
interchangeable cross-reference
interchangeable
336D999H32Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HF6?
HF6 is a BEARING,PLAIN,ROD END.
What parts can replace HF6?
There are 5 known substitutes for HF6: MIL-C-5501/1, NAS815-4A, NAS833-4 and 2 more. Substitute compatibility should be verified for your specific system.
Is HF6 still available?
HF6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026