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HM4U — BEARING,PLAIN,ROD END

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

HM4U: BEARING,PLAIN,ROD END.

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL INNER MEMBER, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN, overall_length: 1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN, thread_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-421-1543, 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
HM4U
NSN: 3120-01-421-1543
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)
SPECIFICATIONS
materialSTEEL INNER MEMBER
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2495 INCHES MINIMUM AND 0.2515 INCHES MAXIMUM IN
overall_length1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN
thread_diameter0.250 INCHES NOMINAL IN
style_designatorBALL TYPE
thread_directionRIGHT-HAND
inner_member_width0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
outer_member_width0.2735 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
shank_thread_length1.0000 INCHES NOMINAL IN
thread_quantity_per_inch28
NSN3120-01-421-1543
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: HM4U · 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
•
SHANK THREAD LENGTH: 1.0000 INCHES NOMINAL IN
•
BORE CENTER TO SHANK END DISTANCE: 1.5520 INCHES MINIMUM AND 1.5720 INCHES MAXIMUM IN
•
INNER MEMBER WIDTH: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
•
OUTER MEMBER WIDTH: 0.2735 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: BALL TYPE
•
THREAD DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
SHANK THREAD LENGTH1.0000 INCHES NOMINAL IN
BORE CENTER TO SHANK END DISTANCE1.5520 INCHES MINIMUM AND 1.5720 INCHES MAXIMUM IN
INNER MEMBER WIDTH0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
OUTER MEMBER WIDTH0.2735 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM IN
STYLE DESIGNATORBALL TYPE
THREAD DIAMETER0.250 INCHES NOMINAL IN
OVERALL LENGTH1.9270 INCHES MINIMUM AND 1.9470 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
SHANK STYLEEXTERNALLY THREADED
THREAD CLASS3A A
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HM4U?
HM4U is a BEARING,PLAIN,ROD END.
What is the NSN for HM4U?
HM4U is cataloged in the U.S. Government catalog under NSN 3120-01-421-1543. This indicates validated use in U.S. government and defense supply chains.
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