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5518775 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5518775: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include lip_inside_diameter: 11.9 MILLIMETERS NOMINAL MM, peripheral_diameter: 13.5 MILLIMETERS NOMINAL MM, body_recess_diameter: 8.5 MILLIMETERS NOMINAL MM, center_hole_diameter: 7.0 MILLIMETERS NOMINAL MM, cross-sectional_height: 4.5 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-174-4242, 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
5518775
NSN: 5330-01-174-4242
FSC: 5330 — Packing and Gasket Materials
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
lip_inside_diameter11.9 MILLIMETERS NOMINAL MM
peripheral_diameter13.5 MILLIMETERS NOMINAL MM
body_recess_diameter8.5 MILLIMETERS NOMINAL MM
center_hole_diameter7.0 MILLIMETERS NOMINAL MM
cross-sectional_height4.5 MILLIMETERS NOMINAL MM
NSN5330-01-174-4242
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5518775 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
•
LIP INSIDE DIAMETER: 11.9 MILLIMETERS NOMINAL MM
•
CROSS-SECTIONAL HEIGHT: 4.5 MILLIMETERS NOMINAL MM
•
BODY RECESS DIAMETER: 8.5 MILLIMETERS NOMINAL MM
•
PERIPHERAL DIAMETER: 13.5 MILLIMETERS NOMINAL MM
•
CENTER HOLE DIAMETER: 7.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
LIP INSIDE DIAMETER11.9 MILLIMETERS NOMINAL MM
CROSS-SECTIONAL HEIGHT4.5 MILLIMETERS NOMINAL MM
BODY RECESS DIAMETER8.5 MILLIMETERS NOMINAL MM
PERIPHERAL DIAMETER13.5 MILLIMETERS NOMINAL MM
CENTER HOLE DIAMETER7.0 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 1
270-0320Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5518775?
5518775 is a RETAINER,PACKING.
What parts can replace 5518775?
There is 1 known substitute for 5518775: 270-0320. Substitute compatibility should be verified for your specific system.
What is the NSN for 5518775?
5518775 is cataloged in the U.S. Government catalog under NSN 5330-01-174-4242. This indicates validated use in U.S. government and defense supply chains.
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