PartsTable
Technical Data Sheet
PartsTable / O-RING / RT253-65-003
RT253-65-003 ✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 0.166 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN, center_hole_diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, cross-sectional_height: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-263-8011, 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
RT253-65-003
NSN: 5331-00-263-8011
FSC: 5331 — O-RING
CAGE: 77969 — RUBBERCRAFT CORPORATION OF CALIFORNIA, LTD. DBA RUBBERCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter0.166 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
center_hole_diameter0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
cross-sectional_height0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
NSN5331-00-263-8011
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RT253-65-003 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: 0.166 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.166 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
MS29513-27Interchangeable
interchangeable cross-reference
interchangeable
MS29513-027Interchangeable
interchangeable cross-reference
interchangeable
AMS-P-5315AInterchangeable
interchangeable cross-reference
interchangeable
8A9020Interchangeable
interchangeable cross-reference
interchangeable
2-007N602-70Interchangeable
interchangeable cross-reference
interchangeable
MS29513-007Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RT253-65-003?
RT253-65-003 is a O-RING.
What parts can replace RT253-65-003?
There are 31 known substitutes for RT253-65-003: MS29513-27, MS29513-027, AMS-P-5315A and 28 more. Substitute compatibility should be verified for your specific system.
Is RT253-65-003 still available?
RT253-65-003 is currently cancelled.
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Last verified: July 2026