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R121455 — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

R121455: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: STEEL, body_style: EXTERNAL LOCKING FLANGE, corner_shape: SQUARE ALL CORNERS, overall_length: 0.625 INCHES NOMINAL IN, anchor_flange_width: 0.125 INCHES NOMINAL IN, body_inside_diameter: 3.358 INCHES MINIMUM AND 3.360 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-977-2782, 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
R121455
NSN: 4320-00-977-2782
FSC: 4320 — Power and Hand Pumps
CAGE: 09259 — ROTARY PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL
body_styleEXTERNAL LOCKING FLANGE
corner_shapeSQUARE ALL CORNERS
overall_length0.625 INCHES NOMINAL IN
anchor_flange_width0.125 INCHES NOMINAL IN
body_inside_diameter3.358 INCHES MINIMUM AND 3.360 INCHES MAXIMUM IN
body_outside_diameter5.123 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
end_to_flange_distance0.219 INCHES NOMINAL IN
center_flange_thickness0.188 INCHES NOMINAL IN
distance_below_centerline0.250 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
largest_external_anchor_flange_radius5.688 INCHES NOMINAL IN
smallest_external_anchor_flange_radius5.438 INCHES NOMINAL IN
NSN4320-00-977-2782
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN R121455 MFR RING,WEARING
KEY FEATURES
•
CENTER FLANGE THICKNESS: 0.188 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
ANCHOR FLANGE WIDTH: 0.125 INCHES NOMINAL IN
•
BODY STYLE: EXTERNAL LOCKING FLANGE
•
BODY OUTSIDE DIAMETER: 5.123 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
•
END TO FLANGE DISTANCE: 0.219 INCHES NOMINAL IN
•
DISTANCE BELOW CENTERLINE: 0.250 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CENTER FLANGE THICKNESS0.188 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
ANCHOR FLANGE WIDTH0.125 INCHES NOMINAL IN
BODY STYLEEXTERNAL LOCKING FLANGE
BODY OUTSIDE DIAMETER5.123 INCHES MINIMUM AND 5.125 INCHES MAXIMUM IN
END TO FLANGE DISTANCE0.219 INCHES NOMINAL IN
OVERALL LENGTH0.625 INCHES NOMINAL IN
DISTANCE BELOW CENTERLINE0.250 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
BODY INSIDE DIAMETER3.358 INCHES MINIMUM AND 3.360 INCHES MAXIMUM IN
SMALLEST EXTERNAL ANCHOR FLANGE RADIUS5.438 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
121455Same 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 R121455?
R121455 is a RING,WEARING.
What parts can replace R121455?
There is 1 known substitute for R121455: 121455. Substitute compatibility should be verified for your specific system.
What is the NSN for R121455?
R121455 is cataloged in the U.S. Government catalog under NSN 4320-00-977-2782. 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.