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168565DD — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

168565DD: 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: 1.125 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES ALL SURFACES, body_inside_diameter: 4.247 INCHES MINIMUM AND 4.248 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-218-3409, 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
168565DD
NSN: 4320-00-218-3409
FSC: 4320 — Power and Hand Pumps
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_stylePLAIN
corner_shapeSQUARE ALL CORNERS
overall_length1.125 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES ALL SURFACES
body_inside_diameter4.247 INCHES MINIMUM AND 4.248 INCHES MAXIMUM IN
body_outside_diameter5.028 INCHES NOMINAL IN
material_document_and_classificationQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
NSN4320-00-218-3409
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 168565DD MFR RING,WEARING
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES ALL SURFACES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY STYLE: PLAIN
•
BODY OUTSIDE DIAMETER: 5.028 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
•
BODY INSIDE DIAMETER: 4.247 INCHES MINIMUM AND 4.248 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
CORNER SHAPESQUARE ALL CORNERS
BODY STYLEPLAIN
BODY OUTSIDE DIAMETER5.028 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH1.125 INCHES NOMINAL IN
BODY INSIDE DIAMETER4.247 INCHES MINIMUM AND 4.248 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
4320PReference document
Same NSN cross-reference
Reference document — Design control — primary reference
SL4219PC71Reference document
Same NSN cross-reference
Reference document — Secondary reference
SL4221PC71Reference 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 168565DD?
168565DD is a RING,WEARING.
What parts can replace 168565DD?
There are 3 known substitutes for 168565DD: 4320P, SL4219PC71, SL4221PC71. Substitute compatibility should be verified for your specific system.
What is the NSN for 168565DD?
168565DD is cataloged in the U.S. Government catalog under NSN 4320-00-218-3409. 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.