PartsTable
Technical Data Sheet
HF4 ✓ 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: STEEL COMP E52100 INNER MEMBER, shank_style: INTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE, thread_class: 3B, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN, overall_length: 1.6770 INCHES MINIMUM AND 1.6970 INCHES MAXIMUM IN, thread_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-7484, 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
HF4
NSN: 3120-00-661-7484
FSC: 3120
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER MEMBER
shank_styleINTERNALLY THREADED W/BEAD AND WRENCH FLATS AND INSPECTION HOLE
thread_class3B
bore_diameter0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
overall_length1.6770 INCHES MINIMUM AND 1.6970 INCHES MAXIMUM IN
thread_diameter0.250 INCHES NOMINAL IN
style_designatorBALL TYPE
thread_directionRIGHT-HAND
features_providedSCREW PLUG CLOSURE FITTING
surface_treatmentCADMIUM ROD END BODY
inner_member_width0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
outer_member_width0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
NSN3120-00-661-7484
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: HF4 · 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
THREAD CLASS: 3B
STYLE DESIGNATOR: BALL TYPE
THREAD SERIES DESIGNATOR: UNF
MATERIAL: STEEL ROD END BODY
LUBRICATION FEATURE: GROOVE EXTERNAL INNER MEMBER
THREAD QUANTITY PER INCH: 28
THREAD DIAMETER: 0.250 INCHES NOMINAL IN
FEATURES PROVIDED: FLUSH LUBRICATION FITTING
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
STYLE DESIGNATORBALL TYPE
THREAD SERIES DESIGNATORUNF
MATERIALSTEEL ROD END BODY
LUBRICATION FEATUREGROOVE EXTERNAL INNER MEMBER
THREAD QUANTITY PER INCH28
THREAD DIAMETER0.250 INCHES NOMINAL IN
FEATURES PROVIDEDFLUSH LUBRICATION FITTING
MATERIALCOPPER ALLOY RACE INSERT
MATERIALSTEEL INNER MEMBER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
E3332Interchangeable
interchangeable cross-reference
interchangeable
5681Interchangeable
interchangeable cross-reference
interchangeable
10-50681Interchangeable
interchangeable cross-reference
interchangeable
104121Interchangeable
interchangeable cross-reference
interchangeable
3W45803Interchangeable
interchangeable cross-reference
interchangeable
RO0090Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HF4?
HF4 is a BEARING,PLAIN,ROD END.
What parts can replace HF4?
There are 12 known substitutes for HF4: E3332, 5681, 10-50681 and 9 more. Substitute compatibility should be verified for your specific system.
Is HF4 still available?
HF4 is currently cancelled.
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