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3123570PT4 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

3123570PT4: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, corner_shape: SQUARE INSIDE RIGHT CORNER, flange_width: 0.6875 INCHES NOMINAL IN, overall_length: 3.5625 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE, special_features: LEFT END OF BORE COUNTERBORED 0.8125 DIA,0.1875 DEEP,RIGHT END OF BODY OD RELIEVED TO 1.2500 DIA,0.2500 LONG. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-032-8323, 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
3123570PT4
NSN: 3120-01-032-8323
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
corner_shapeSQUARE INSIDE RIGHT CORNER
flange_width0.6875 INCHES NOMINAL IN
overall_length3.5625 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
special_featuresLEFT END OF BORE COUNTERBORED 0.8125 DIA,0.1875 DEEP,RIGHT END OF BODY OD RELIEVED TO 1.2500 DIA,0.2500 LONG
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.7500 INCHES MINIMUM AND 0.7510 INCHES MAXIMUM IN
body_outside_diameter1.4370 INCHES MINIMUM AND 1.4380 INCHES MAXIMUM IN
flange_outside_diameter1.7460 INCHES MINIMUM AND 1.7480 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED CIRCULAR
material_document_and_classificationMIL-R-17131,TY MIL-RFECRCO MIL SPEC SINGLE MATERIAL RESPONSE OUTSIDE DIAMETER SURFACE OF BODY
NSN3120-01-032-8323
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3123570PT4 · 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 FLANGE
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
SURFACE FINISH63.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE
SURFACE FINISH63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
SURFACE FINISH125.0 MICROINCHES RIGHT END SURFACE OF BODY
SURFACE FINISH63.0 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 4
134B219AAPT4Reference document
Same NSN cross-reference
Reference document — Secondary reference
X317298Reference document
Same NSN cross-reference
Reference document — Secondary reference
134B219AAP4Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
134B219AA4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3123570PT4?
3123570PT4 is a BUSHING,SLEEVE.
What parts can replace 3123570PT4?
There are 4 known substitutes for 3123570PT4: 134B219AAPT4, X317298, 134B219AAP4 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3123570PT4?
3123570PT4 is cataloged in the U.S. Government catalog under NSN 3120-01-032-8323. 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.