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Technical Data Sheet
PartsTable / O-RING / ARP568-008MILR25897TY1CL1
ARP568-008MILR25897TY1CL1 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM, outside_diameter: 0.316 INCHES NOMINAL IN, center_hole_diameter: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM 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 5331-01-029-9916, 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
ARP568-008MILR25897TY1CL1
NSN: 5331-01-029-9916
FSC: 5331 — O-RING
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
outside_diameter0.316 INCHES NOMINAL IN
center_hole_diameter0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZW
material_document_and_classificationMIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-01-029-9916
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ARP568-008MILR25897TY1CL1 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
DEPARTURE FROM CITED DOCUMENT: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
HARDNESS RATING: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 0.316 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: ZZZW
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
DEPARTURE FROM CITED DOCUMENTCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
ELONGATION PERCENTAGE125 MAXIMUM
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER0.316 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONZZZW
MATERIALRUBBER FLUOROCARBON CLASS FPM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
MIL-R-83248/1-008Interchangeable
interchangeable cross-reference
interchangeable
AS3209-008CPCPInterchangeable
interchangeable cross-reference
interchangeable
AS3209-008CPInterchangeable
interchangeable cross-reference
interchangeable
M83248/1-012CPInterchangeable
interchangeable cross-reference
interchangeable
NAS1594-012CPInterchangeable
interchangeable cross-reference
interchangeable
AS568-008AS7276Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ARP568-008MILR25897TY1CL1?
ARP568-008MILR25897TY1CL1 is a O-RING.
What parts can replace ARP568-008MILR25897TY1CL1?
There are 9 known substitutes for ARP568-008MILR25897TY1CL1: MIL-R-83248/1-008, AS3209-008CPCP, AS3209-008CP and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ARP568-008MILR25897TY1CL1?
ARP568-008MILR25897TY1CL1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-029-9916. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026