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PartsTable / COMPONENT / 668J936 PIECE 8
668J936 PIECE 8 ✓ 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 AND STEEL COMP 304 OVERALL, outside_diameter: 1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN, cross-sectional_shape_style: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-803-1408, 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
668J936 PIECE 8
NSN: 5330-00-803-1408
FSC: 5330
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
materialASBESTOS AND STEEL COMP 304 OVERALL
outside_diameter1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
material_document_and_classificationFED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-803-1408
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 668J936 PIECE 8 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: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
•
MATERIAL: ASBESTOS AND STEEL COMP 304 OVERALL
•
OUTSIDE DIAMETER: 1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
MATERIALASBESTOS AND STEEL COMP 304 OVERALL
OUTSIDE DIAMETER1.375 INCHES NOMINAL1.375 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
APERTURE DIAMETER1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
R445ARN30Interchangeable
interchangeable cross-reference
interchangeable
R13BInterchangeable
interchangeable cross-reference
interchangeable
15511Interchangeable
interchangeable cross-reference
interchangeable
897-600-4 1-2INInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 668J936 PIECE 8?
668J936 PIECE 8 is a GASKET,SPIRAL WOUND.
What parts can replace 668J936 PIECE 8?
There are 4 known substitutes for 668J936 PIECE 8: R445ARN30, R13B, 15511 and 1 more. Substitute compatibility should be verified for your specific system.
Is 668J936 PIECE 8 still available?
668J936 PIECE 8 is currently cancelled.
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Last verified: July 2026