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SG3947PC21 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

SG3947PC21: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN, overall_length: 1.9375 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE, style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-752-8964, 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
SG3947PC21
NSN: 3120-00-752-8964
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 59180 — CIRCOR PUMPS NORTH AMERICA LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
overall_length1.9375 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.4914 INCHES MINIMUM AND 1.4920 INCHES MAXIMUM IN
body_outside_diameter2.2505 INCHES MINIMUM AND 2.2510 INCHES MAXIMUM IN
flange_outside_diameter3.0469 INCHES MINIMUM AND 3.0781 INCHES MAXIMUM IN
NSN3120-00-752-8964
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: SG3947PC21 · 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
•
SURFACE FINISH: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE FINISH250.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH250.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
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 2
SG3945PC21Reference document
Same NSN cross-reference
Reference document — Secondary reference
S1407BAB9736Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 SG3947PC21?
SG3947PC21 is a BUSHING,SLEEVE.
What parts can replace SG3947PC21?
There are 2 known substitutes for SG3947PC21: SG3945PC21, S1407BAB9736. Substitute compatibility should be verified for your specific system.
What is the NSN for SG3947PC21?
SG3947PC21 is cataloged in the U.S. Government catalog under NSN 3120-00-752-8964. 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.