PartsTable
Technical Data Sheet
Download PDF

63X353 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

63X353: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: RECESSED, seal_width: 0.375 INCHES NOMINAL IN, surface_treatment: CADMIUM CASE, housing_bore_diameter: 1.750 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-641-4218, 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
63X353
NSN: 5330-00-641-4218
NIINs: 006414218, 007074776
FSC: 5330 — Packing and Gasket Materials
CAGE: 06350 — ASSET SYSTEMS, INC. DBA ASSET SYSTEMS INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleRECESSED
seal_width0.375 INCHES NOMINAL IN
surface_treatmentCADMIUM CASE
housing_bore_diameter1.750 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.125 INCHES NOMINAL IN
NSN5330-00-641-4218
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 63X353 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
•
TEMP RATING: 300.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.438 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.756 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM CASE
TECHNICAL CHARACTERISTICS
TEMP RATING300.0 FAHRENHEIT DEGF
SEAL WIDTH0.438 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.756 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.125 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM CASE
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 5
1187006Reference document
Same NSN cross-reference
Reference document — Secondary reference
1216276PC46Reference document
Same NSN cross-reference
Reference document — Secondary reference
1187006PCALLReference document
Same NSN cross-reference
Reference document — Secondary reference
50189Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
187006PCALLReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 63X353?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 63X353?
63X353 is a SEAL,PLAIN ENCASED.
What parts can replace 63X353?
There are 5 known substitutes for 63X353: 1187006, 1216276PC46, 1187006PCALL and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63X353?
63X353 is cataloged in the U.S. Government catalog under NSN 5330-00-641-4218. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 63X353

✓ 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.