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A0NAI-12588A — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A0NAI-12588A: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, body_style: PLAIN, corner_shape: SQUARE ALL CORNERS, overall_length: 0.750 INCHES NOMINAL IN, special_features: MTG HOLES COUNTERBORED 0.437 IN. DIA BY 0.250 IN.

DP IN, body_inside_diameter: 4.125 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 4320-01-254-5553, 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
A0NAI-12588A
NSN: 4320-01-254-5553
FSC: 4320 — Power and Hand Pumps
CAGE: 16062 — M.T. DAVIDSON COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_stylePLAIN
corner_shapeSQUARE ALL CORNERS
overall_length0.750 INCHES NOMINAL IN
special_featuresMTG HOLES COUNTERBORED 0.437 IN. DIA BY 0.250 IN. DP IN
bolt_hole_quantity2
body_inside_diameter4.125 INCHES NOMINAL IN
body_outside_diameter4.500 INCHES NOMINAL IN
unthreaded_mounting_hole_diameter0.280 INCHES NOMINAL IN
NSN4320-01-254-5553
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN A0NAI-12588A MFR RING,WEARING
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY STYLE: PLAIN
•
BODY OUTSIDE DIAMETER: 4.500 INCHES NOMINAL IN
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.280 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 4.125 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 2
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY STYLEPLAIN
BODY OUTSIDE DIAMETER4.500 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.280 INCHES NOMINAL IN
OVERALL LENGTH0.750 INCHES NOMINAL IN
BODY INSIDE DIAMETER4.125 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
SPECIAL FEATURESMTG HOLES COUNTERBORED 0.437 IN. DIA BY 0.250 IN. DP IN
MATERIALCOPPER ALLOY
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
GCP321 PIECE 46Same 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 A0NAI-12588A?
A0NAI-12588A is a RING,WEARING.
What parts can replace A0NAI-12588A?
There is 1 known substitute for A0NAI-12588A: GCP321 PIECE 46. Substitute compatibility should be verified for your specific system.
What is the NSN for A0NAI-12588A?
A0NAI-12588A is cataloged in the U.S. Government catalog under NSN 4320-01-254-5553. 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.