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Technical Data Sheet
PartsTable / COMPONENT / 188476
188476 ✓ Verified by PartsTable
Hama · 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

- Tablet case with a transparent back: So the design of your tablet can be seen<br>- The integrated magnet turns the device on when the lid is opened and off when it is closed<br>- Stand function for easy positioning of the device in two steps<br>- Openings for full access to connections and controls<br>- The device can remain in the bag while being used<br>- Fabric meets tablet: soft fabric surface for a pleasant feel This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-353-7278, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
188476
NSN: 3120-00-353-7278
FSC: 3120
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity6
inside_diameter0.769 INCHES MINIMUM AND 0.801 INCHES MAXIMUM IN
style_designatorCYLINDRICAL
spring_free_length1.440 INCHES MINIMUM AND 1.615 INCHES MAXIMUM IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_deflection_rate22.800 POUNDS PER INCH NOMINAL LBS
spring_free_outside_diameter0.925 INCHES MINIMUM AND 0.965 INCHES MAXIMUM IN
NSN3120-00-353-7278
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 188476 · Hama ⚠ 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: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-P-691,TYPE 1,COMP 8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-P-691,TYPE 1,COMP 8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
OVERALL LENGTH0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
0210548-4Interchangeable
interchangeable cross-reference
interchangeable
JT9009Interchangeable
interchangeable cross-reference
interchangeable
210548Interchangeable
interchangeable cross-reference
interchangeable
6-3-83Interchangeable
IBM 16/32gb 14 Tape Drive Assm
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
07-102481Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 188476?
188476 is a WEIGHT,COUNTERBALANCE manufactured by Hama.
What parts can replace 188476?
There are 25 known substitutes for 188476: 0210548-4, JT9009, 210548 and 22 more. Substitute compatibility should be verified for your specific system.
Is 188476 still available?
188476 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026