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53X-02-186 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

53X-02-186: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: SPECIAL, material: STEEL COMP 304, thickness: 1.500 INCHES NOMINAL1.500 INCHES NOMINAL IN, thread_size: 0.500-13, aperture_shape: SPECIAL, outside_diameter: 18.723 INCHES NOMINAL18.723 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-386-6025, 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
53X-02-186
NSN: 5340-01-386-6025
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
shapeSPECIAL
materialSTEEL COMP 304
thickness1.500 INCHES NOMINAL1.500 INCHES NOMINAL IN
thread_size0.500-13
aperture_shapeSPECIAL
outside_diameter18.723 INCHES NOMINAL18.723 INCHES NOMINAL IN
special_featuresMOUNTING CONFIGURATION: THD HOLES EQUALLY SPACED ON 14.960 IN. BC, UNTHD HOLES EQUALLY SPACED ON 17.750 IN. BC IN
aperture_diameter13.805 INCHES NOMINAL IN
features_providedAPERTURE
surface_treatmentPAINT
mounting_hole_typeTHREADED AND UNTHREADED
mounting_hole_diameter0.500 INCHES NOMINAL ALL HOLES IN
NSN5340-01-386-6025
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 53X-02-186 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 AND 5
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 304 ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.531 INCHES NOMINAL FIRST HOLE IN
•
SHAPE: SPECIAL
•
OUTSIDE DIAMETER: 18.723 INCHES NOMINAL18.723 INCHES NOMINAL IN
•
APERTURE DIAMETER: 13.805 INCHES NOMINAL IN
•
FEATURES PROVIDED: APERTURE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6 AND 5
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 304 ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.531 INCHES NOMINAL FIRST HOLE IN
MOUNTING HOLE DIAMETER0.500 INCHES NOMINAL ALL HOLES IN
SHAPESPECIAL
OUTSIDE DIAMETER18.723 INCHES NOMINAL18.723 INCHES NOMINAL IN
APERTURE DIAMETER13.805 INCHES NOMINAL IN
FEATURES PROVIDEDAPERTURE
THREAD SIZE0.500-13
SPECIAL FEATURESMOUNTING CONFIGURATION: THD HOLES EQUALLY SPACED ON 14.960 IN. BC, UNTHD HOLES EQUALLY SPACED ON 17.750 IN. BC IN
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

No substitute or cross-reference records for this part.

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 53X-02-186?
53X-02-186 is a PLATE,MOUNTING.
What is the NSN for 53X-02-186?
53X-02-186 is cataloged in the U.S. Government catalog under NSN 5340-01-386-6025. 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.