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K4-63447 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

K4-63447: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, seal_width: 0.222 INCHES NOMINAL IN, construction: SOLID, housing_bore_diameter: 1.253 INCHES MINIMUM AND 1.259 INCHES MAXIMUM IN, accommodated_shaft_diameter: 0.875 INCHES NOMINAL IN, cross-sectional_shape_style: DUAL LIP. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-277-9911, 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
K4-63447
NSN: 5330-01-277-9911
FSC: 5330 — Packing and Gasket Materials
CAGE: 79150 — DANA AUTOMOTIVE SYSTEMS GROUP, LLC DBA DANA SEALING PRODUCTS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
seal_width0.222 INCHES NOMINAL IN
constructionSOLID
housing_bore_diameter1.253 INCHES MINIMUM AND 1.259 INCHES MAXIMUM IN
accommodated_shaft_diameter0.875 INCHES NOMINAL IN
cross-sectional_shape_styleDUAL LIP
NSN5330-01-277-9911
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K4-63447 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
•
SEAL WIDTH: 0.222 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 1.253 INCHES MINIMUM AND 1.259 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: DUAL LIP
•
ACCOMMODATED SHAFT DIAMETER: 0.875 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.222 INCHES NOMINAL IN
HOUSING BORE DIAMETER1.253 INCHES MINIMUM AND 1.259 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEDUAL LIP
ACCOMMODATED SHAFT DIAMETER0.875 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL SPRING
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 1
712-0044-653Reference 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 K4-63447?
K4-63447 is a SEAL,PLAIN.
What parts can replace K4-63447?
There is 1 known substitute for K4-63447: 712-0044-653. Substitute compatibility should be verified for your specific system.
What is the NSN for K4-63447?
K4-63447 is cataloged in the U.S. Government catalog under NSN 5330-01-277-9911. 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.