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Technical Data Sheet
PartsTable / O-RING / 10121181
10121181 ✓ 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 SYNTHETIC, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 4.520 INCHES NOMINAL IN, center_hole_diameter: 4.072 INCHES MINIMUM AND 4.128 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-160-4327, 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
10121181
NSN: 5331-01-160-4327
FSC: 5331 — O-RING
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialRUBBER SYNTHETIC
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter4.520 INCHES NOMINAL IN
center_hole_diameter4.072 INCHES MINIMUM AND 4.128 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
material_document_and_classificationMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5331-01-160-4327
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10121181 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 4.072 INCHES MINIMUM AND 4.128 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
OUTSIDE DIAMETER: 4.520 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
CROSS-SECTIONAL HEIGHT: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER4.072 INCHES MINIMUM AND 4.128 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
OUTSIDE DIAMETER4.520 INCHES NOMINAL IN
ELONGATION PERCENTAGE125 MAXIMUM
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AD571-24Y99FN6Interchangeable
interchangeable cross-reference
interchangeable
A-346SR837-75Interchangeable
interchangeable cross-reference
interchangeable
PRP346-7377Interchangeable
interchangeable cross-reference
interchangeable
593-514-1862802PC15VIT0NInterchangeable
interchangeable cross-reference
interchangeable
597-518-1884492REVAPC7Interchangeable
interchangeable cross-reference
interchangeable
2-346 V747-75Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10121181?
10121181 is a O-RING.
What parts can replace 10121181?
There are 15 known substitutes for 10121181: AD571-24Y99FN6, A-346SR837-75, PRP346-7377 and 12 more. Substitute compatibility should be verified for your specific system.
Is 10121181 still available?
10121181 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026