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Technical Data Sheet
PartsTable / COMPONENT / 8517PC25
8517PC25 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 6.250 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 4.750 INCHES NOMINAL IN, bolt_circle_diameter: 5.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-256-8157, 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
8517PC25
NSN: 5330-00-256-8157
FSC: 5330
CAGE: 83590 — SMITH METER INC PARTS OPN (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter6.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter4.750 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter5.375 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-256-8157
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8517PC25 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
•
BOLT CIRCLE DIAMETER: 5.375 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
STYLE DESIGNATOR: CIRCULAR
•
APERTURE DIAMETER: 4.750 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE DIAMETER5.375 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
HOLE DIAMETER0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER4.750 INCHES NOMINAL IN
OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
MATERIALASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1344Interchangeable
interchangeable cross-reference
interchangeable
01221Interchangeable
interchangeable cross-reference
interchangeable
01344Interchangeable
interchangeable cross-reference
interchangeable
B107.400 CAT 54 TY1Interchangeable
interchangeable cross-reference
interchangeable
2450-2247-001Interchangeable
interchangeable cross-reference
interchangeable
GGG-H-86Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8517PC25?
8517PC25 is a GASKET.
What parts can replace 8517PC25?
There are 20 known substitutes for 8517PC25: 1344, 01221, 01344 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8517PC25?
8517PC25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-256-8157. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026