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Technical Data Sheet
PartsTable / COMPONENT / 8379981
8379981 ✓ 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 COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 932 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.9688 INCHES MINIMUM AND 1.0312 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN, body_outside_diameter: 2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-678-8274, 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
8379981
NSN: 3120-00-678-8274
FSC: 3120
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY 932 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.9688 INCHES MINIMUM AND 1.0312 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN
body_outside_diameter2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN
material_document_and_classificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-678-8274
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 8379981 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY INSIDE DIAMETER: 1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 932 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
BODY INSIDE DIAMETER1.9050 INCHES MINIMUM AND 1.9100 INCHES MAXIMUM IN
OVERALL LENGTH0.9688 INCHES MINIMUM AND 1.0312 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.0300 INCHES MINIMUM AND 2.0320 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 932 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
J4491Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-15305Interchangeable
interchangeable cross-reference
interchangeable
101321Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8379981?
8379981 is a COIL,RADIO FREQUENCY.
What parts can replace 8379981?
There are 3 known substitutes for 8379981: J4491, MIL-C-15305, 101321. Substitute compatibility should be verified for your specific system.
What is the NSN for 8379981?
8379981 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-678-8274. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026