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681403 SET — PACKING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

681403 SET: PACKING ASSEMBLY.

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 1.500 INCHES NOMINAL IN, material: PLASTIC OVERALL, inside_diameter: 0.875 INCHES NOMINAL IN, outside_diameter: 1.375 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE/RECTANGULAR PACKING, material_document_and_classification: MIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-533-4899, 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
681403 SET
NSN: 5330-01-533-4899
FSC: 5330 — Packing and Gasket Materials
CAGE: 4Y1F4 — TWC THE VALVE COMPANY, L.L.C. (USA)
SPECIFICATIONS
height1.500 INCHES NOMINAL IN
materialPLASTIC OVERALL
inside_diameter0.875 INCHES NOMINAL IN
outside_diameter1.375 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE/RECTANGULAR PACKING
material_document_and_classificationMIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-533-4899
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 681403 SET 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
•
OUTSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR PACKING
•
INSIDE DIAMETER: 0.875 INCHES NOMINAL IN
•
HEIGHT: 1.500 INCHES NOMINAL IN
•
MATERIAL: PLASTIC OVERALL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER1.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-17303,TYPE E,CL 2,SYMBOL 111 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR PACKING
INSIDE DIAMETER0.875 INCHES NOMINAL IN
HEIGHT1.500 INCHES NOMINAL IN
MATERIALPLASTIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
7510-232-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
N-11398-1-3PC13(3IN)Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 681403 SET?
681403 SET is a PACKING ASSEMBLY.
What parts can replace 681403 SET?
There are 2 known substitutes for 681403 SET: 7510-232-1, N-11398-1-3PC13(3IN). Substitute compatibility should be verified for your specific system.
What is the NSN for 681403 SET?
681403 SET is cataloged in the U.S. Government catalog under NSN 5330-01-533-4899. This indicates validated use in U.S. government and defense supply chains.
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