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518-5794759 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

518-5794759: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: NICKEL OVERALL, thread_class: 3A A, thread_length: 1.750 INCHES NOMINAL IN, fastener_length: 2.750 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, internal_drive_style: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-266-1514, 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
518-5794759
NSN: 5330-01-266-1514
NIINs: 012661514, 014670914
FSC: 5330 — Packing and Gasket Materials
CAGE: 6K404 — BASIC RUBBER AND PLASTICS CO. (USA)
SPECIFICATIONS
materialNICKEL OVERALL
thread_class3A A
thread_length1.750 INCHES NOMINAL IN
fastener_length2.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleHEXAGON
nominal_thread_diameter1.250 INCHES IN
thread_quantity_per_inch7
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
material_document_and_classificationQQ-N-286,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-266-1514
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 518-5794759 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
SUBSTITUTES & CROSS-REFERENCES 1
2018-8 ITEM 39Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 518-5794759?
518-5794759 is a SEAL,PLAIN.
What parts can replace 518-5794759?
There is 1 known substitute for 518-5794759: 2018-8 ITEM 39. Substitute compatibility should be verified for your specific system.
What is the NSN for 518-5794759?
518-5794759 is cataloged in the U.S. Government catalog under NSN 5330-01-266-1514. This indicates validated use in U.S. government and defense supply chains.
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