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30634 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

30634: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: RUBBER, overall_width: 0.938 INCHES NOMINAL IN, overall_height: 0.250 INCHES NOMINAL IN, overall_length: 0.938 INCHES NOMINAL IN, special_features: CENTER MOUNTING HOLE 0.312 IN. DIA IN, style_designator: RECTANGULAR.

This part is cataloged in the U.S. Government catalog under NSN 3120-00-965-6627, 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
30634
NSN: 3120-00-965-6627
NIINs: 009656627, 012978467
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 27235 — HARDIE-TYNES CO., INC. (USA)
SPECIFICATIONS
materialRUBBER
overall_width0.938 INCHES NOMINAL IN
overall_height0.250 INCHES NOMINAL IN
overall_length0.938 INCHES NOMINAL IN
special_featuresCENTER MOUNTING HOLE 0.312 IN. DIA IN
style_designatorRECTANGULAR
material_hardness_rating50.0 DUROMETER NOMINAL
material_document_and_classificationMIL-R-6855, CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3120-00-965-6627
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 30634 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
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BODY OUTSIDE DIAMETER: 0.6876 INCHES MINIMUM AND 0.6886 INCHES MAXIMUM IN
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STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
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MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-16540,GR A MIL SPEC ALL MATERIAL RESPONSES OVERALL
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BODY INSIDE DIAMETER: 0.5625 INCHES MINIMUM AND 0.5635 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 903 OR COPPER ALLOY 923 OVERALL
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER0.6876 INCHES MINIMUM AND 0.6886 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-16540,GR A MIL SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL LENGTH0.7500 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.5625 INCHES MINIMUM AND 0.5635 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 903 OR COPPER ALLOY 923 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 30634?
30634 is a BEARING,SLEEVE.
What is the NSN for 30634?
30634 is cataloged in the U.S. Government catalog under NSN 3120-00-965-6627. 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.