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J7027 — REPLACING TOOL,ENGINE VALVE SEAT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

J7027: REPLACING TOOL,ENGINE VALVE SEAT.

REPLACING TOOL,ENGINE VALVE SEAT. Key specifications include width: 5.250 INCHES NOMINAL IN, length: 8.250 INCHES NOMINAL IN, material: ALUMINUM ALLOY 319.0, corner_radius: 0.500 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, FOUR HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-115-4338, 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
J7027
NSN: 5340-00-115-4338
NIINs: 001154338, 007950102
FSC: 5340 — Hardware, Commercial
CAGE: 80837 — KYSOR/WESTRAN CORP AUSTIN TRAILER DIV (USA)
SPECIFICATIONS
width5.250 INCHES NOMINAL IN
length8.250 INCHES NOMINAL IN
materialALUMINUM ALLOY 319.0
corner_radius0.500 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, FOUR HOLES
cross-sectional_shape_styleCIRCULAR RECESS
distance_between_holes_along_width4.250 INCHES NOMINAL IN
distance_between_holes_along_length7.250 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width2.109 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length2.625 INCHES NOMINAL IN
NSN5340-00-115-4338
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: J7027 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 2.109 INCHES NOMINAL IN
•
CORNER RADIUS: 0.500 INCHES NOMINAL IN
•
LENGTH: 8.250 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 7.250 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 4.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
•
SECURING DEVICE TYPE: SPECIAL
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 2.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH2.109 INCHES NOMINAL IN
CORNER RADIUS0.500 INCHES NOMINAL IN
LENGTH8.250 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH7.250 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH4.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
SECURING DEVICE TYPESPECIAL
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH2.625 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH5.250 INCHES NOMINAL IN
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 J7027?
J7027 is a REPLACING TOOL,ENGINE VALVE SEAT.
What is the NSN for J7027?
J7027 is cataloged in the U.S. Government catalog under NSN 5340-00-115-4338. 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.