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Technical Data Sheet
AMS7273C ✓ 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 FLUOROSILICONE CLASS FQ, temp_rating: -67.0 FAHRENHEIT AND 347.0 FAHRENHEIT DEGF, hardness_rating: 75.0 SHORE DUROMETER A NOMINAL, outside_diameter: 1.130 INCHES NOMINAL IN, center_hole_diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-020-5264, 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
AMS7273C
NSN: 5331-01-020-5264
FSC: 5331 — O-RING
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialRUBBER FLUOROSILICONE CLASS FQ
temp_rating-67.0 FAHRENHEIT AND 347.0 FAHRENHEIT DEGF
hardness_rating75.0 SHORE DUROMETER A NOMINAL
outside_diameter1.130 INCHES NOMINAL IN
center_hole_diameter0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-01-020-5264
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AMS7273C 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
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
HARDNESS RATING: 75.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER: 4.972 INCHES MINIMUM AND 5.002 INCHES MAXIMUM IN
TEMP RATING: -67.0 FAHRENHEIT AND 347.0 FAHRENHEIT DEGF
MATERIAL: RUBBER FLUOROSILICONE CLASS FQ
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
HARDNESS RATING75.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER4.972 INCHES MINIMUM AND 5.002 INCHES MAXIMUM IN
TEMP RATING-67.0 FAHRENHEIT AND 347.0 FAHRENHEIT DEGF
MATERIALRUBBER FLUOROSILICONE CLASS FQ
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AS568-159Interchangeable
interchangeable cross-reference
interchangeable
4.987ID.0.103WInterchangeable
interchangeable cross-reference
interchangeable
AMS 7273CInterchangeable
interchangeable cross-reference
interchangeable
78151-119Interchangeable
interchangeable cross-reference
interchangeable
78151-159Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AMS7273C?
AMS7273C is a O-RING.
What parts can replace AMS7273C?
There are 5 known substitutes for AMS7273C: AS568-159, 4.987ID.0.103W, AMS 7273C and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AMS7273C?
AMS7273C is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-020-5264. This indicates validated use in U.S. government and defense supply chains.
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