PartsTable / O-RING / 257-8307
257-8307
✓ 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, temp_rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 6.094 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN, center_hole_diameter: 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN, elongation_percentage: 331 MAXIMUM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-028-0818, 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
257-8307
NSN: 5331-01-028-0818 FSC: 5331 — O-RINGCAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
material RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR temp_rating -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF hardness_rating 70.0 SHORE DUROMETER A NOMINAL outside_diameter 6.094 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN center_hole_diameter 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN elongation_percentage 331 MAXIMUM cross-sectional_height 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN NSN 5331-01-028-0818
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: 257-8307
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
• HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
• CENTER HOLE DIAMETER: 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN
• CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
• TEMP RATING: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
• MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
• ELONGATION PERCENTAGE: 331 MAXIMUM
• OUTSIDE DIAMETER: 6.094 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING 70.0 SHORE DUROMETER A NOMINAL CENTER HOLE DIAMETER 5.836 INCHES MINIMUM AND 5.882 INCHES MAXIMUM IN CROSS-SECTIONAL HEIGHT 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN TEMP RATING -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR ELONGATION PERCENTAGE 331 MAXIMUM OUTSIDE DIAMETER 6.094 INCHES MINIMUM AND 6.180 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2257 Interchangeable interchangeable cross-reference
interchangeable
2615 Interchangeable interchangeable cross-reference
interchangeable
2265 Interchangeable interchangeable cross-reference
interchangeable
AMS3215 Interchangeable interchangeable cross-reference
interchangeable
E2250PC83 Interchangeable interchangeable cross-reference
interchangeable
101A905U01 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 257-8307?
257-8307 is a O-RING.
What parts can replace 257-8307?
There are 20 known substitutes for 257-8307: 2257, 2615, 2265 and 17 more. Substitute compatibility should be verified for your specific system.
Is 257-8307 still available?
257-8307 is currently cancelled.
Request a Quote — 257-8307