PartsTable
Technical Data Sheet
PartsTable / O-RING / 2661058B136
2661058B136 ✓ 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: 2.170 INCHES MINIMUM AND 2.216 INCHES MAXIMUM IN, center_hole_diameter: 1.977 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-291-7295, 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
2661058B136
NSN: 5331-00-291-7295
FSC: 5331 — O-RING
CAGE: 92003 — PARKER HANNIFIN CORPORATION DIV AEROSPACE GROUP HEADQUARTERS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter2.170 INCHES MINIMUM AND 2.216 INCHES MAXIMUM IN
center_hole_diameter1.977 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-00-291-7295
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2661058B136 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: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.170 INCHES MINIMUM AND 2.216 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.977 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.170 INCHES MINIMUM AND 2.216 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.977 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
251286Interchangeable
interchangeable cross-reference
interchangeable
80013Interchangeable
interchangeable cross-reference
interchangeable
120368Interchangeable
interchangeable cross-reference
interchangeable
190-3-5Interchangeable
interchangeable cross-reference
interchangeable
8764939Interchangeable
interchangeable cross-reference
interchangeable
1455-4-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2661058B136?
2661058B136 is a O-RING.
What parts can replace 2661058B136?
There are 15 known substitutes for 2661058B136: 251286, 80013, 120368 and 12 more. Substitute compatibility should be verified for your specific system.
Is 2661058B136 still available?
2661058B136 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026