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512-6404653-69 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

512-6404653-69: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: ROUND, material: NICKEL ALLOY, thickness: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN, aperture_shape: ROUND, outside_diameter: 5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN, special_features: MOUNTING CONFIGURATION: EQ SPC 4-1/2 IN. BC IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-398-7475, 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
512-6404653-69
NSN: 5340-01-398-7475
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
shapeROUND
materialNICKEL ALLOY
thickness0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
aperture_shapeROUND
outside_diameter5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
special_featuresMOUNTING CONFIGURATION: EQ SPC 4-1/2 IN. BC IN
aperture_diameter1.280 INCHES NOMINAL IN
features_providedAPERTURE
mounting_hole_typeUNTHREADED
mounting_hole_diameter0.531 INCHES NOMINAL ALL HOLES IN
mounting_hole_quantity6
NSN5340-01-398-7475
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 512-6404653-69 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 6
•
MOUNTING HOLE DIAMETER: 0.531 INCHES NOMINAL ALL HOLES IN
•
SHAPE: ROUND
•
OUTSIDE DIAMETER: 5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.280 INCHES NOMINAL IN
•
FEATURES PROVIDED: APERTURE
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6
MOUNTING HOLE DIAMETER0.531 INCHES NOMINAL ALL HOLES IN
SHAPEROUND
OUTSIDE DIAMETER5.500 INCHES NOMINAL5.500 INCHES NOMINAL IN
APERTURE DIAMETER1.280 INCHES NOMINAL IN
FEATURES PROVIDEDAPERTURE
SPECIAL FEATURESMOUNTING CONFIGURATION: EQ SPC 4-1/2 IN. BC IN
MATERIALNICKEL ALLOY
THICKNESS0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
MOUNTING HOLE TYPEUNTHREADED
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 2
512-6404653 FINReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
512-6404653-117Same 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 512-6404653-69?
512-6404653-69 is a PLATE,MOUNTING.
What parts can replace 512-6404653-69?
There are 2 known substitutes for 512-6404653-69: 512-6404653 FIN, 512-6404653-117. Substitute compatibility should be verified for your specific system.
What is the NSN for 512-6404653-69?
512-6404653-69 is cataloged in the U.S. Government catalog under NSN 5340-01-398-7475. 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.