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55-22103-18US — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

55-22103-18US: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, body_style: EXTERNAL LOCKING FLANGE, corner_shape: SQUARE ALL CORNERS, overall_length: 0.750 INCHES NOMINAL IN, surface_finish: 250.0 MICROINCHES LEFT FACE, distance_from_end: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-792-5101, 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
55-22103-18US
NSN: 4320-00-792-5101
FSC: 4320 — Power and Hand Pumps
CAGE: 52081 — EURAMCO SAFETY INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_styleEXTERNAL LOCKING FLANGE
corner_shapeSQUARE ALL CORNERS
overall_length0.750 INCHES NOMINAL IN
surface_finish250.0 MICROINCHES LEFT FACE
distance_from_end0.312 INCHES NOMINAL IN
body_inside_diameter4.358 INCHES MINIMUM AND 4.361 INCHES MAXIMUM IN
body_outside_diameter5.245 INCHES MINIMUM AND 5.246 INCHES MAXIMUM IN
end_to_flange_distance0.562 INCHES NOMINAL IN
distance_between_flanges0.375 INCHES NOMINAL IN
distance_below_centerline0.125 INCHES NOMINAL IN
left_side_flange_thickness0.188 INCHES NOMINAL IN
NSN4320-00-792-5101
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 55-22103-18US MFR RING,WEARING
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES INSIDE
•
CORNER SHAPE: SQUARE ALL CORNERS
•
DISTANCE BETWEEN FLANGES: 0.375 INCHES NOMINAL IN
•
BODY STYLE: EXTERNAL LOCKING FLANGE
•
DISTANCE FROM END: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES INSIDE
SURFACE FINISH250.0 MICROINCHES LEFT FACE
SURFACE FINISH250.0 MICROINCHES OUTSIDE
SURFACE FINISH250.0 MICROINCHES RIGHT FACE
CORNER SHAPESQUARE ALL CORNERS
DISTANCE BETWEEN FLANGES0.375 INCHES NOMINAL IN
BODY STYLEEXTERNAL LOCKING FLANGE
DISTANCE FROM END0.312 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER5.245 INCHES MINIMUM AND 5.246 INCHES MAXIMUM IN
END TO FLANGE DISTANCE0.562 INCHES NOMINAL IN
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 1
K1 1-2T16CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 55-22103-18US?
55-22103-18US is a RING,WEARING.
What parts can replace 55-22103-18US?
There is 1 known substitute for 55-22103-18US: K1 1-2T16C. Substitute compatibility should be verified for your specific system.
What is the NSN for 55-22103-18US?
55-22103-18US is cataloged in the U.S. Government catalog under NSN 4320-00-792-5101. 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.