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139990 — BUSHING,SLEEVE

✓ Government record, cited
Hama · BALL BEARING
PRODUCT OVERVIEW

139990: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a Hama industrial component. Key specifications include material: PLASTIC PHENOLIC OVERALL, corner_shape: SQUARE OUTSIDE LEFT CORNER, flange_width: 0.0500 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN, overall_length: 0.4700 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.2600 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-293-4502, 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
139990
NSN: 3120-00-293-4502
NIINs: 002934502, 012013706, 015943991
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialPLASTIC PHENOLIC OVERALL
corner_shapeSQUARE OUTSIDE LEFT CORNER
flange_width0.0500 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM IN
overall_length0.4700 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.2600 INCHES MINIMUM AND 0.2700 INCHES MAXIMUM IN
body_outside_diameter0.4000 INCHES MINIMUM AND 0.4100 INCHES MAXIMUM IN
flange_outside_diameter0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
NSN3120-00-293-4502
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 139990 · Hama ⚠ 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: SQUARE INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.4000 INCHES MINIMUM AND 0.4100 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER0.5900 INCHES MINIMUM AND 0.6100 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.4000 INCHES MINIMUM AND 0.4100 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.4700 INCHES NOMINAL IN
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 139990?
139990 is a BUSHING,SLEEVE manufactured by Hama.
What is the NSN for 139990?
139990 is cataloged in the U.S. Government catalog under NSN 3120-00-293-4502. This indicates validated use in U.S. government and defense supply chains.
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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.