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Technical Data Sheet
PartsTable / COMPONENT / 397-55-5-7-C IT
397-55-5-7-C IT ✓ 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,SPIRAL WOUND is a the manufacturer industrial component. Key specifications include material: ASBESTOS CHRYSOTILE AND STEEL COMP 347 AND RUBBER OR WAX PARAFFIN OVERALL, aperture_width: 2.781 INCHES NOMINAL2.781 INCHES NOMINAL IN, aperture_length: 3.406 INCHES NOMINAL3.406 INCHES NOMINAL IN, style_designator: OVAL, bearing_surface_width: 0.156 INCHES NOMINAL0.156 INCHES NOMINAL IN, cross-sectional_thickness: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL 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 5330-00-186-4102, 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
397-55-5-7-C IT
NSN: 5330-00-186-4102
FSC: 5330
CAGE: 23230 — AMEC FOSTER WHEELER NORTH AMERICA CORP. DBA FOSTER WHEELER (USA)
SPECIFICATIONS
materialASBESTOS CHRYSOTILE AND STEEL COMP 347 AND RUBBER OR WAX PARAFFIN OVERALL
aperture_width2.781 INCHES NOMINAL2.781 INCHES NOMINAL IN
aperture_length3.406 INCHES NOMINAL3.406 INCHES NOMINAL IN
style_designatorOVAL
bearing_surface_width0.156 INCHES NOMINAL0.156 INCHES NOMINAL IN
cross-sectional_thickness0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
material_document_and_classificationMIL-G-15342 CL A MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-186-4102
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 397-55-5-7-C IT 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
•
STYLE DESIGNATOR: OVAL
•
BEARING SURFACE WIDTH: 0.156 INCHES NOMINAL0.156 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-15342 CL A MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
APERTURE LENGTH: 3.406 INCHES NOMINAL3.406 INCHES NOMINAL IN
•
MATERIAL: ASBESTOS CHRYSOTILE AND STEEL COMP 347 AND RUBBER OR WAX PARAFFIN OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
CROSS-SECTIONAL THICKNESS: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
•
APERTURE WIDTH: 2.781 INCHES NOMINAL2.781 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATOROVAL
BEARING SURFACE WIDTH0.156 INCHES NOMINAL0.156 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-15342 CL A MIL SPEC ALL MATERIAL RESPONSES OVERALL
APERTURE LENGTH3.406 INCHES NOMINAL3.406 INCHES NOMINAL IN
MATERIALASBESTOS CHRYSOTILE AND STEEL COMP 347 AND RUBBER OR WAX PARAFFIN OVERALL
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
CROSS-SECTIONAL THICKNESS0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
APERTURE WIDTH2.781 INCHES NOMINAL2.781 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
5000S5101F841218TYPE1Interchangeable
interchangeable cross-reference
interchangeable
C-E-51Interchangeable
interchangeable cross-reference
interchangeable
5000S5101F841218Interchangeable
interchangeable cross-reference
interchangeable
803-5959278Interchangeable
interchangeable cross-reference
interchangeable
MIL-G-15342Interchangeable
interchangeable cross-reference
interchangeable
5000S5101F841218TYPE5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 397-55-5-7-C IT?
397-55-5-7-C IT is a GASKET,SPIRAL WOUND.
What parts can replace 397-55-5-7-C IT?
There are 10 known substitutes for 397-55-5-7-C IT: 5000S5101F841218TYPE1, C-E-51, 5000S5101F841218 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 397-55-5-7-C IT?
397-55-5-7-C IT is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-186-4102. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026