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PartsTable / COMPONENT / ASTMF104-03
ASTMF104-03 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: CORK AND RUBBER CHLOROPRENE CLASS CR OVERALL, hole_diameter: 0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 5.500 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 4.000 INCHES NOMINAL IN, bolt_circle_diameter: 4.875 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-178-9793, 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
ASTMF104-03
NSN: 5330-00-178-9793
FSC: 5330
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialCORK AND RUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.312 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter5.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter4.000 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter4.875 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM F104, F227000-2S9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-178-9793
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ASTMF104-03 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
•
NONDEFINITIVE SPEC/STD DATA: 1B TYPE AND 2 CLASS
•
WIDTH: 12.000 INCHES NOMINAL IN
•
MATERIAL: CORK AND RESIN NATURAL AND RESIN SYNTHETIC
•
LENGTH: 36.000 INCHES NOMINAL IN
•
THICKNESS: 0.094 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA1B TYPE AND 2 CLASS
WIDTH12.000 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA1B TYPE AND 2 CLASS
MATERIALCORK AND RESIN NATURAL AND RESIN SYNTHETIC
LENGTH36.000 INCHES NOMINAL IN
THICKNESS0.094 INCHES NOMINAL IN
LENGTH36.000 INCHES NOMINAL IN
WIDTH12.000 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTHERR-060
THICKNESS0.094 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
HHC576TYPE1BCLASS2Interchangeable
interchangeable cross-reference
interchangeable
N4FB3557GInterchangeable
interchangeable cross-reference
interchangeable
ASTM F104Interchangeable
interchangeable cross-reference
interchangeable
F215000M1RWInterchangeable
interchangeable cross-reference
interchangeable
E-4515 ITEM 10Interchangeable
interchangeable cross-reference
interchangeable
EL904-826Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASTMF104-03?
ASTMF104-03 is a GASKET.
What parts can replace ASTMF104-03?
There are 26 known substitutes for ASTMF104-03: HHC576TYPE1BCLASS2, N4FB3557G, ASTM F104 and 23 more. Substitute compatibility should be verified for your specific system.
Is ASTMF104-03 still available?
ASTMF104-03 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026