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K558 — DIAPHRAGM,PRESSURE SWITCH

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

K558: DIAPHRAGM,PRESSURE SWITCH.

The DIAPHRAGM,PRESSURE SWITCH is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, cone_width: 1.4440 INCHES NOMINAL IN, bore_diameter: 2.3750 INCHES NOMINAL IN, special_features: MATERIAL,VULCAN 2.000 IN. DIA,0.062 IN.

THICK,7LY SPACED ON A 1.625 IN. B. C.

D. IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0938 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-0281, 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
K558
NSN: 3110-00-100-0281
NIINs: 001000281, 005488344
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: F0272 — SKF FRANCE (FRA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.4440 INCHES NOMINAL IN
bore_diameter2.3750 INCHES NOMINAL IN
special_featuresMATERIAL,VULCAN 2.000 IN. DIA,0.062 IN. THICK,7LY SPACED ON A 1.625 IN. B. C. D. IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0938 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0281
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: K558 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.0938 INCHES NOMINAL IN
•
CONE WIDTH: 1.4440 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 2.3750 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.0938 INCHES NOMINAL IN
CONE WIDTH1.4440 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER2.3750 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 7
710036Reference document
Same NSN cross-reference
Reference document — Secondary reference
30080Reference document
Same NSN cross-reference
Reference document — Secondary reference
26623JReference document
Same NSN cross-reference
Reference document — Secondary reference
10036Reference document
Same NSN cross-reference
Reference document — Secondary reference
T2172Reference document
Same NSN cross-reference
Reference document — Secondary reference
558Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 K558?
K558 is a DIAPHRAGM,PRESSURE SWITCH.
What parts can replace K558?
There are 7 known substitutes for K558: 710036, 30080, 26623J and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for K558?
K558 is cataloged in the U.S. Government catalog under NSN 3110-00-100-0281. 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.