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Technical Data Sheet
PartsTable / O-RING / MILR25988-2-011ES
MILR25988-2-011ES ✓ 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, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.441 INCHES NOMINAL IN, center_hole_diameter: 0.294 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN, elongation_percentage: 125 MAXIMUM, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-253-4844, 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
MILR25988-2-011ES
NSN: 5331-00-253-4844
FSC: 5331 — O-RING
CAGE: H2313 — ERIKS B.V. (NLD)
SPECIFICATIONS
materialRUBBER
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter0.441 INCHES NOMINAL IN
center_hole_diameter0.294 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
elongation_percentage125 MAXIMUM
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-253-4844
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MILR25988-2-011ES 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
•
OUTSIDE DIAMETER: 0.441 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.294 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
•
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
•
ELONGATION PERCENTAGE: 125 MAXIMUM
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.441 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.294 INCHES MINIMUM AND 0.308 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE125 MAXIMUM
MATERIALRUBBER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
M83248/1-011Interchangeable
interchangeable cross-reference
interchangeable
10017039Interchangeable
interchangeable cross-reference
interchangeable
10017001Interchangeable
interchangeable cross-reference
interchangeable
S9413-011Interchangeable
interchangeable cross-reference
interchangeable
S8057AP6Interchangeable
Same NIIN cross-reference
interchangeable
S9005E11Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILR25988-2-011ES?
MILR25988-2-011ES is a O-RING.
What parts can replace MILR25988-2-011ES?
There are 10 known substitutes for MILR25988-2-011ES: M83248/1-011, 10017039, 10017001 and 7 more. Substitute compatibility should be verified for your specific system.
Is MILR25988-2-011ES still available?
MILR25988-2-011ES is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026