PartsTable
Technical Data Sheet
Download PDF

105FM1648-3 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

105FM1648-3: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 3.1580 INCHES MINIMUM AND 3.1680 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES INTERMEDIATE LAYER, hardness_rating: 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL, special_features: 0.0003 IN. MIN,0.0005 IN.

MAX THK OF CADMIUM PLATING IN. This part is cataloged in the U.S. Government catalog under NSN 3120-00-080-9411, 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
105FM1648-3
NSN: 3120-00-080-9411
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length3.1580 INCHES MINIMUM AND 3.1680 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES INTERMEDIATE LAYER
hardness_rating27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
special_features0.0003 IN. MIN,0.0005 IN. MAX THK OF CADMIUM PLATING IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.5006 INCHES MINIMUM AND 0.5016 INCHES MAXIMUM IN
body_outside_diameter0.6215 INCHES MINIMUM AND 0.6225 INCHES MAXIMUM IN
material_document_and_classificationMIL-T-6736,COMP 4130,TYPE 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-080-9411
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 105FM1648-3 · 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: 125.0 MICROINCHES INTERMEDIATE LAYER
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.6215 INCHES MINIMUM AND 0.6225 INCHES MAXIMUM IN
•
HARDNESS RATING: 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-6736,COMP 4130,TYPE 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.5006 INCHES MINIMUM AND 0.5016 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES INTERMEDIATE LAYER
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.6215 INCHES MINIMUM AND 0.6225 INCHES MAXIMUM IN
HARDNESS RATING27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-6736,COMP 4130,TYPE 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH3.1580 INCHES MINIMUM AND 3.1680 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.5006 INCHES MINIMUM AND 0.5016 INCHES MAXIMUM IN
SPECIAL FEATURES0.0003 IN. MIN,0.0005 IN. MAX THK OF CADMIUM PLATING IN
SURFACE TREATMENTCADMIUM OVERALL
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

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
Ready to buy 105FM1648-3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 105FM1648-3?
105FM1648-3 is a BUSHING,SLEEVE.
What is the NSN for 105FM1648-3?
105FM1648-3 is cataloged in the U.S. Government catalog under NSN 3120-00-080-9411. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 105FM1648-3

✓ 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.