PartsTable
Technical Data Sheet

55-22268-190/S — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

55-22268-190/S: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, body_style: PLAIN, corner_shape: SQUARE ALL CORNERS, overall_length: 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES INSIDE, body_inside_diameter: 3.499 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-079-5819, 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
55-22268-190/S
NSN: 4320-00-079-5819
FSC: 4320 — Power and Hand Pumps
CAGE: 52081 — EURAMCO SAFETY INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
body_stylePLAIN
corner_shapeSQUARE ALL CORNERS
overall_length0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES INSIDE
body_inside_diameter3.499 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN
body_outside_diameter3.779 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
NSN4320-00-079-5819
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 55-22268-190/S MFR RING,WEARING
KEY FEATURES
•
SURFACE FINISH: 63.0 MICROINCHES INSIDE
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY STYLE: PLAIN
•
BODY OUTSIDE DIAMETER: 3.779 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH63.0 MICROINCHES INSIDE
SURFACE FINISH63.0 MICROINCHES LEFT FACE
SURFACE FINISH63.0 MICROINCHES OUTSIDE
SURFACE FINISH63.0 MICROINCHES RIGHT FACE
CORNER SHAPESQUARE ALL CORNERS
BODY STYLEPLAIN
BODY OUTSIDE DIAMETER3.779 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN
OVERALL LENGTH0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.499 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING
OTHER ITEMS IN FSC 4320 — Power and Hand Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633 4320-00-001-2628 4320-00-001-2629 4320-00-001-2630 4320-00-001-2631 4320-00-001-2632 4320-00-001-3377 4320-00-001-3384
SUBSTITUTES & CROSS-REFERENCES 2
676-1765-111Reference document
Same NSN cross-reference
Reference document — Secondary reference
2HC251PC38AReference 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 55-22268-190/S?
55-22268-190/S is a RING,WEARING.
What parts can replace 55-22268-190/S?
There are 2 known substitutes for 55-22268-190/S: 676-1765-111, 2HC251PC38A. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-22268-190/S?
55-22268-190/S is cataloged in the U.S. Government catalog under NSN 4320-00-079-5819. 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.