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Technical Data Sheet
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343D146G01 — RING,RETAINING,INSTRUMENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

343D146G01: RING,RETAINING,INSTRUMENT.

The RING,RETAINING,INSTRUMENT is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5365-01-004-1289, 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
343D146G01
NSN: 5365-01-004-1289
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionALUMINUM ALLOY,18.175 IN. OD,15.880 IN. ID,0.750 IN. LG,6 HOLES 0.406 IN. DIA EQUALLY SPACED ON 17.250 IN. BOLT CIRCLE IN
NSN5365-01-004-1289
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,RETAINING,INSTRUMENT TITLE COMPONENT PN 343D146G01 MFR RING,RETAINING,INSTRUM
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY,18.175 IN. OD,15.880 IN. ID,0.750 IN. LG,6 HOLES 0.406 IN. DIA EQUALLY SPACED ON 17.250 IN. BOLT CIRCLE IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY,18.175 IN. OD,15.880 IN. ID,0.750 IN. LG,6 HOLES 0.406 IN. DIA EQUALLY SPACED ON 17.250 IN. BOLT CIRCLE IN
SUBSTITUTES & CROSS-REFERENCES 1
41697-1Reference 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 343D146G01?
343D146G01 is a RING,RETAINING,INSTRUMENT.
What parts can replace 343D146G01?
There is 1 known substitute for 343D146G01: 41697-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 343D146G01?
343D146G01 is cataloged in the U.S. Government catalog under NSN 5365-01-004-1289. 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.