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H4320-398-6933 — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

H4320-398-6933: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, body_style: INTERNAL AND EXTERNAL FLANGE, corner_shape: SQUARE INSIDE LEFT CORNER, overall_length: 0.843 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES INSIDE, flange_diameter: 4.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-398-6933, 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
H4320-398-6933
NSN: 4320-00-398-6933
FSC: 4320 — Power and Hand Pumps
CAGE: 12004 — NAVAL SEA SYSTEMS COMMAND LOGISTICS SUPPORT ENGINEERING ACTIVITY (USA)
SPECIFICATIONS
materialNICKEL ALLOY
body_styleINTERNAL AND EXTERNAL FLANGE
corner_shapeSQUARE INSIDE LEFT CORNER
overall_length0.843 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES INSIDE
flange_diameter4.188 INCHES NOMINAL IN
special_features0.062 IN. W BY 0.015 IN. DEEP GROOVES ON OD ABUTING FLANGE IN
body_inside_diameter3.437 INCHES NOMINAL IN
body_outside_diameter3.875 INCHES NOMINAL IN
internal_flange_width0.468 INCHES NOMINAL IN
positioning_lug_width0.438 INCHES NOMINAL IN
end_to_flange_distance0.343 INCHES NOMINAL IN
NSN4320-00-398-6933
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN H4320-398-6933 MFR RING,WEARING
KEY FEATURES
•
CENTER FLANGE THICKNESS: 0.248 INCHES NOMINAL IN
•
SURFACE FINISH: 63.0 MICROINCHES INSIDE
•
FLANGE DIAMETER: 4.188 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE OUTSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
CENTER FLANGE THICKNESS0.248 INCHES NOMINAL IN
SURFACE FINISH63.0 MICROINCHES INSIDE
SURFACE FINISH63.0 MICROINCHES COUNTERBORE
SURFACE FINISH63.0 MICROINCHES OUTSIDE
FLANGE DIAMETER4.188 INCHES NOMINAL IN
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPEROUND INSIDE RIGHT CORNER
INTERNAL FLANGE OUTSIDE DIAMETER3.167 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
H583EX2Reference 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 H4320-398-6933?
H4320-398-6933 is a RING,WEARING.
What parts can replace H4320-398-6933?
There is 1 known substitute for H4320-398-6933: H583EX2. Substitute compatibility should be verified for your specific system.
What is the NSN for H4320-398-6933?
H4320-398-6933 is cataloged in the U.S. Government catalog under NSN 4320-00-398-6933. 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.