PartsTable
Technical Data Sheet

BM1.50/1.25 — TORIC MOLD,GLASS BACK

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

BM1.50/1.25: TORIC MOLD,GLASS BACK.

The TORIC MOLD,GLASS BACK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8620 OVERALL, overall_length: 1.2500 INCHES NOMINAL IN, special_features: REPLACEMENT COMPONENT/GLSBM-180 SYSTEM, GLASS BACK MOLDS, body_inside_diameter: 1.5070 INCHES MINIMUM AND 1.5160 INCHES MAXIMUM IN, body_outside_diameter: 1.8770 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN, end_item_identification: 6540-01-507-3503, GLSBM-180, GLASS BACK MOLD SET. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-249-4298, 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
BM1.50/1.25
NSN: 3120-01-249-4298
NIINs: 012494298, 015081649
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 0CJY4 — HESSTON CORP WOODS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 8620 OVERALL
overall_length1.2500 INCHES NOMINAL IN
special_featuresREPLACEMENT COMPONENT/GLSBM-180 SYSTEM, GLASS BACK MOLDS
body_inside_diameter1.5070 INCHES MINIMUM AND 1.5160 INCHES MAXIMUM IN
body_outside_diameter1.8770 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
end_item_identification6540-01-507-3503, GLSBM-180, GLASS BACK MOLD SET
part_name_assigned_by_controlling_agencyMOLD TORIC GLASS BACK 1.50/1.25
NSN3120-01-249-4298
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: BM1.50/1.25 · 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
•
BODY OUTSIDE DIAMETER: 1.8770 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.5070 INCHES MINIMUM AND 1.5160 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 8620 OVERALL
TECHNICAL CHARACTERISTICS
BODY OUTSIDE DIAMETER1.8770 INCHES MINIMUM AND 1.8780 INCHES MAXIMUM IN
OVERALL LENGTH1.2500 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.5070 INCHES MINIMUM AND 1.5160 INCHES MAXIMUM IN
MATERIALSTEEL COMP 8620 OVERALL
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 BM1.50/1.25?
BM1.50/1.25 is a TORIC MOLD,GLASS BACK.
What is the NSN for BM1.50/1.25?
BM1.50/1.25 is cataloged in the U.S. Government catalog under NSN 3120-01-249-4298. 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.