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840938 — CONNECTOR,RECEPTACLE,ELECTRICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

840938: CONNECTOR,RECEPTACLE,ELECTRICAL.

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, thread_class: 2A AND 2B A, overall_width: 1.312 INCHES NOMINAL IN, overall_height: 1.030 INCHES NOMINAL IN, overall_length: 1.687 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-427-6597, 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
840938
NSN: 3120-00-427-6597
NIINs: 004276597, 009575224
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
thread_class2A AND 2B A
overall_width1.312 INCHES NOMINAL IN
overall_height1.030 INCHES NOMINAL IN
overall_length1.687 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
insert_materialCERAMIC SINGLE MATING END
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
thread_directionRIGHT-HAND
mating_end_quantity2
nominal_thread_size0.375 INCHES AND 0.138 INCHES IN
NSN3120-00-427-6597
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 840938 · 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
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
•
BODY OUTSIDE DIAMETER: 1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.9531 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
BODY OUTSIDE DIAMETER1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH2.0000 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.9531 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 840938?
840938 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What is the NSN for 840938?
840938 is cataloged in the U.S. Government catalog under NSN 3120-00-427-6597. 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.