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177408 — BEARING,BALL,ANNULAR

✓ Government record, cited
Hama · TAPERED BEARING
PRODUCT OVERVIEW

177408: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a Hama industrial component. Key specifications include material: GLASS AND PLASTIC POLYTETRAFLUOROETHYLENE SEAL, bore_shape: STRAIGHT, flange_width: 0.0420 INCHES NOMINAL IN, bore_diameter: 0.2500 INCHES NOMINAL IN, overall_width: 0.1960 INCHES NOMINAL IN, load_direction: RADIAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-442-7751, 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
177408
NSN: 3110-01-442-7751
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21877 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialGLASS AND PLASTIC POLYTETRAFLUOROETHYLENE SEAL
bore_shapeSTRAIGHT
flange_width0.0420 INCHES NOMINAL IN
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.1960 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
internal_clearance0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
NSN3110-01-442-7751
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 177408 · Hama ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
INTERNAL CLEARANCE: 0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
•
FLANGE OUTSIDE DIAMETER: 0.6900 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
INTERNAL CLEARANCE0.0003 INCHES MINIMUM RADIAL AND 0.0006 INCHES MAXIMUM RADIAL IN
FLANGE OUTSIDE DIAMETER0.6900 INCHES NOMINAL IN
SURFACE FINISHGROUND
SHIELD QUANTITY2
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH0.1960 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
SSRF-4LLBPEERA7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 177408?
177408 is a BEARING,BALL,ANNULAR manufactured by Hama.
What parts can replace 177408?
There is 1 known substitute for 177408: SSRF-4LLBPEERA7. Substitute compatibility should be verified for your specific system.
What is the NSN for 177408?
177408 is cataloged in the U.S. Government catalog under NSN 3110-01-442-7751. 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.