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Technical Data Sheet
PartsTable / O-RING / PX1775-250
PX1775-250 ✓ 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: 5.219 INCHES MINIMUM AND 5.305 INCHES MAXIMUM IN, center_hole_diameter: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-291-3085, 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
PX1775-250
NSN: 5331-00-291-3085
FSC: 5331 — O-RING
CAGE: 70106 — ACUSHNET RUBBER COMPANY, INC. DBA PRECIX (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter5.219 INCHES MINIMUM AND 5.305 INCHES MAXIMUM IN
center_hole_diameter4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-291-3085
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PX1775-250 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
•
OUTSIDE DIAMETER: 5.219 INCHES MINIMUM AND 5.305 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
OUTSIDE DIAMETER5.219 INCHES MINIMUM AND 5.305 INCHES MAXIMUM IN
CENTER HOLE DIAMETER4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
30611Interchangeable
interchangeable cross-reference
interchangeable
40-6057DInterchangeable
interchangeable cross-reference
interchangeable
40-6057BInterchangeable
interchangeable cross-reference
interchangeable
3100Interchangeable
interchangeable cross-reference
interchangeable
0510-0040Interchangeable
interchangeable cross-reference
interchangeable
5100-31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PX1775-250?
PX1775-250 is a O-RING.
What parts can replace PX1775-250?
There are 16 known substitutes for PX1775-250: 30611, 40-6057D, 40-6057B and 13 more. Substitute compatibility should be verified for your specific system.
Is PX1775-250 still available?
PX1775-250 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026