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PartsTable / COMPONENT / DB7231
DB7231 ✓ 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 RESISTOR NETWORK,FIXED,FILM is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, overall_length: 1.6250 INCHES NOMINAL IN, surface_finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY, body_inside_diameter: 1.3670 INCHES MINIMUM AND 1.3700 INCHES MAXIMUM IN, body_outside_diameter: 1.6900 INCHES MINIMUM AND 1.6910 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 3120-00-338-7859, 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
DB7231
NSN: 3120-00-338-7859
FSC: 3120
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
overall_length1.6250 INCHES NOMINAL IN
surface_finish32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
body_inside_diameter1.3670 INCHES MINIMUM AND 1.3700 INCHES MAXIMUM IN
body_outside_diameter1.6900 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
NSN3120-00-338-7859
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: DB7231 · 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
•
BODY OUTSIDE DIAMETER: 1.6900 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
•
SURFACE FINISH: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
BODY INSIDE DIAMETER: 1.3670 INCHES MINIMUM AND 1.3700 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.6250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.6900 INCHES MINIMUM AND 1.6910 INCHES MAXIMUM IN
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
MATERIALOIL LUBRICATING LUBRICATION
MATERIALCOPPER ALLOY OVERALL
BODY INSIDE DIAMETER1.3670 INCHES MINIMUM AND 1.3700 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
ABT3374Interchangeable
interchangeable cross-reference
interchangeable
T-3374Interchangeable
interchangeable cross-reference
interchangeable
723-1Interchangeable
interchangeable cross-reference
interchangeable
071751-000-012Interchangeable
interchangeable cross-reference
interchangeable
3503096Interchangeable
interchangeable cross-reference
interchangeable
558-0884-002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DB7231?
DB7231 is a RESISTOR NETWORK,FIXED,FILM.
What parts can replace DB7231?
There are 15 known substitutes for DB7231: ABT3374, T-3374, 723-1 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DB7231?
DB7231 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-338-7859. 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