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100645-1 — FITTING,TUBE

✓ Government record, cited
3M · BALL BEARING
PRODUCT OVERVIEW

100645-1: FITTING,TUBE.

The FITTING,TUBE is a 3M industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.3800 INCHES NOMINAL IN, overall_length: 0.4150 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.3750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-122-8540, 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
100645-1
NSN: 3120-01-122-8540
NIINs: 011228540, 011910205
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 52512 — ASTRA PRODUCTS CO., INC. OF TAMPA DBA ASTRA PRODUCTS CO INC OF TAMPA (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.3800 INCHES NOMINAL IN
overall_length0.4150 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.3750 INCHES NOMINAL IN
body_outside_diameter0.6180 INCHES NOMINAL IN
flange_outside_diameter1.1250 INCHES NOMINAL IN
NSN3120-01-122-8540
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 100645-1 · 3M ⚠ 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: 1.1250 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.6180 INCHES NOMINAL 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 DIAMETER1.1250 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.6180 INCHES NOMINAL IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.4150 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 100645-1?
100645-1 is a FITTING,TUBE manufactured by 3M.
What is the NSN for 100645-1?
100645-1 is cataloged in the U.S. Government catalog under NSN 3120-01-122-8540. 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.