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7ADD531PC6 — INSERT,ENGINE VALVE SEAT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7ADD531PC6: INSERT,ENGINE VALVE SEAT.

The INSERT,ENGINE VALVE SEAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A SECOND THREADED PORTION A, thread_length: 0.490 INCHES NOMINAL SECOND THREADED PORTION IN, overall_height: 1.625 INCHES NOMINAL IN, special_features: 1.000 IN. HEX WRENCHING FEATURE BETWEEN THREAD ENDS IN, style_designator: DOUBLE FLANGED.

This part is cataloged in the U.S. Government catalog under NSN 2815-00-147-0475, 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
7ADD531PC6
NSN: 2815-00-147-0475
FSC: 2815 — Diesel Engines and Components
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A SECOND THREADED PORTION A
thread_length0.490 INCHES NOMINAL SECOND THREADED PORTION IN
overall_height1.625 INCHES NOMINAL IN
special_features1.000 IN. HEX WRENCHING FEATURE BETWEEN THREAD ENDS IN
style_designatorDOUBLE FLANGED
nominal_thread_size0.625 INCHES FIRST THREADED PORTION IN
seating_surface_shapeFLAT
thread_series_designatorUNF FIRST THREADED PORTION
body_stepped_inside_diameter0.405 INCHES NOMINAL SECOND STEP IN
NSN2815-00-147-0475
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSERT,ENGINE VALVE SEAT TITLE COMPONENT PN 7ADD531PC6 MFR INSERT,ENGINE VALVE SE
KEY FEATURES
•
THREAD LENGTH: 0.375 INCHES NOMINAL FIRST THREADED PORTION IN
•
BODY STEPPED INSIDE DIAMETER: 0.289 INCHES NOMINAL FIRST STEP IN
•
STYLE DESIGNATOR: DOUBLE FLANGED
•
NOMINAL THREAD SIZE: 0.625 INCHES FIRST THREADED PORTION IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.625 INCHES NOMINAL IN
THREAD LENGTH0.375 INCHES NOMINAL FIRST THREADED PORTION IN
THREAD LENGTH0.490 INCHES NOMINAL SECOND THREADED PORTION IN
BODY STEPPED INSIDE DIAMETER0.289 INCHES NOMINAL FIRST STEP IN
BODY STEPPED INSIDE DIAMETER0.405 INCHES NOMINAL SECOND STEP IN
BODY STEPPED INSIDE DIAMETER0.500 INCHES NOMINAL THIRD STEP IN
STYLE DESIGNATORDOUBLE FLANGED
NOMINAL THREAD SIZE0.625 INCHES FIRST THREADED PORTION IN
NOMINAL THREAD SIZE0.750 INCHES SECOND THREADED PORTION IN
SPECIAL FEATURES1.000 IN. HEX WRENCHING FEATURE BETWEEN THREAD ENDS IN
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813
SUBSTITUTES & CROSS-REFERENCES 6
13ADD531PC6Reference document
Same NSN cross-reference
Reference document — Secondary reference
ADE544AReference document
Same NSN cross-reference
Reference document — Secondary reference
ADD544AReference document
Same NSN cross-reference
Reference document — Design control — primary reference
10ADE531PC6Reference document
Same NSN cross-reference
Reference document — Secondary reference
MADG531PC6Reference document
Same NSN cross-reference
Reference document — Secondary reference
15ADD531PC6Reference 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 7ADD531PC6?
7ADD531PC6 is a INSERT,ENGINE VALVE SEAT.
What parts can replace 7ADD531PC6?
There are 6 known substitutes for 7ADD531PC6: 13ADD531PC6, ADE544A, ADD544A and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7ADD531PC6?
7ADD531PC6 is cataloged in the U.S. Government catalog under NSN 2815-00-147-0475. 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.