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Technical Data Sheet

RAS1 15/16 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

RAS1 15/16: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, base_length: 0.7500 INCHES NOMINAL IN, housing_width: 8.1250 INCHES NOMINAL IN, base_thickness: 0.2500 INCHES NOMINAL IN, housing_height: 4.5000 INCHES NOMINAL IN, housing_length: 2.1875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-609-6988, 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
RAS1 15/16
NSN: 3130-00-609-6988
FSC: 3130 — Bearings, Mounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
base_length0.7500 INCHES NOMINAL IN
housing_width8.1250 INCHES NOMINAL IN
base_thickness0.2500 INCHES NOMINAL IN
housing_height4.5000 INCHES NOMINAL IN
housing_length2.1875 INCHES NOMINAL IN
style_designatorPILLOW BLOCK, SEPARABLE W/O INNERLINER
height_from_bottom_of_base_to_bore_centerline2.2500 INCHES NOMINAL IN
center_to_center_distance_between_mounting_holes_along_width6.2500 INCHES NOMINAL IN
NSN3130-00-609-6988
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: RAS1 15/16 · 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
•
HOUSING HEIGHT: 4.5000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PILLOW BLOCK, SEPARABLE W/O INNERLINER
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 6.2500 INCHES NOMINAL IN
•
HOUSING WIDTH: 8.1250 INCHES NOMINAL IN
•
BASE LENGTH: 0.7500 INCHES NOMINAL IN
•
BASE THICKNESS: 0.2500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOUSING LENGTH: 2.1875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT4.5000 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, SEPARABLE W/O INNERLINER
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH6.2500 INCHES NOMINAL IN
HOUSING WIDTH8.1250 INCHES NOMINAL IN
BASE LENGTH0.7500 INCHES NOMINAL IN
BASE THICKNESS0.2500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
HOUSING LENGTH2.1875 INCHES NOMINAL IN
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE2.2500 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
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 RAS1 15/16?
RAS1 15/16 is a HOUSING,BEARING UNIT.
What is the NSN for RAS1 15/16?
RAS1 15/16 is cataloged in the U.S. Government catalog under NSN 3130-00-609-6988. 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.