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Technical Data Sheet
PartsTable / COMPONENT / GS921-1-4
GS921-1-4 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.5000 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.2501 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN, body_outside_diameter: 0.4075 INCHES MINIMUM AND 0.4078 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-548-6790, 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
GS921-1-4
NSN: 3120-00-548-6790
FSC: 3120
CAGE: 62128 — DEVLIEG BULLARD II, INC. DBA TOOLING SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.5000 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.2501 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN
body_outside_diameter0.4075 INCHES MINIMUM AND 0.4078 INCHES MAXIMUM IN
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-548-6790
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: GS921-1-4 · 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
•
MATERIAL: STEEL COMP E52100 OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.2501 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.4075 INCHES MINIMUM AND 0.4078 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP E52100 OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY INSIDE DIAMETER0.2501 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.4075 INCHES MINIMUM AND 0.4078 INCHES MAXIMUM IN
OVERALL LENGTH0.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
07-200482Interchangeable
interchangeable cross-reference
interchangeable
3350Interchangeable
interchangeable cross-reference
interchangeable
200482Interchangeable
interchangeable cross-reference
interchangeable
20048200Interchangeable
interchangeable cross-reference
interchangeable
20-048-3Interchangeable
interchangeable cross-reference
interchangeable
20-048-0007-03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GS921-1-4?
GS921-1-4 is a BUSHING,SLEEVE.
What parts can replace GS921-1-4?
There are 12 known substitutes for GS921-1-4: 07-200482, 3350, 200482 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GS921-1-4?
GS921-1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-548-6790. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026