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2-279C557-70 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2-279C557-70: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, temp_rating: -45.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL, peripheral_diameter: 13.189 INCHES MINIMUM AND 13.335 INCHES MAXIMUM IN, center_hole_diameter: 12.984 INCHES MINIMUM AND 13.014 INCHES MAXIMUM IN, cross-sectional_shape_style: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-162-9754, 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
2-279C557-70
NSN: 5330-01-162-9754
FSC: 5330 — Packing and Gasket Materials
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
temp_rating-45.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
peripheral_diameter13.189 INCHES MINIMUM AND 13.335 INCHES MAXIMUM IN
center_hole_diameter12.984 INCHES MINIMUM AND 13.014 INCHES MAXIMUM IN
cross-sectional_shape_styleO-RING
cross_section_outside_diameter0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5330-01-162-9754
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2-279C557-70 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
•
TEMP RATING: -45.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
HARDNESS RATING: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: O-RING
•
PERIPHERAL DIAMETER: 13.189 INCHES MINIMUM AND 13.335 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 12.984 INCHES MINIMUM AND 13.014 INCHES MAXIMUM IN
•
CROSS SECTION OUTSIDE DIAMETER: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS
TEMP RATING-45.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLEO-RING
PERIPHERAL DIAMETER13.189 INCHES MINIMUM AND 13.335 INCHES MAXIMUM IN
CENTER HOLE DIAMETER12.984 INCHES MINIMUM AND 13.014 INCHES MAXIMUM IN
CROSS SECTION OUTSIDE DIAMETER0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
714387-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
K70-0020Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1N141300072Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-279C873-70Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2-279 AMS3209Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2-279C557-70?
2-279C557-70 is a PACKING,PREFORMED.
What parts can replace 2-279C557-70?
There are 5 known substitutes for 2-279C557-70: 714387-1, K70-0020, 1N141300072 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2-279C557-70?
2-279C557-70 is cataloged in the U.S. Government catalog under NSN 5330-01-162-9754. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.