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Technical Data Sheet
PartsTable / COMPONENT / 5Y12521-8
5Y12521-8 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES NOMINAL, cut_type: RECTANGULAR RETAINER, material: PLASTIC OVERALL, joint_type: SCARF-BUTT RETAINER, peripheral_diameter: 2.375 INCHES NOMINAL IN, center_hole_diameter: 2.125 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 5330-00-113-1655, 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
5Y12521-8
NSN: 5330-00-113-1655
FSC: 5330
CAGE: 556A6 — LINDE MATERIAL HANDLING NORTH AMERICA CORPORATION (USA)
SPECIFICATIONS
angle45.0 DEGREES NOMINAL
cut_typeRECTANGULAR RETAINER
materialPLASTIC OVERALL
joint_typeSCARF-BUTT RETAINER
peripheral_diameter2.375 INCHES NOMINAL IN
center_hole_diameter2.125 INCHES NOMINAL IN
cross-sectional_height0.093 INCHES NOMINAL IN
cross-sectional_thickness0.0465 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE
NSN5330-00-113-1655
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5Y12521-8 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
•
CROSS-SECTIONAL HEIGHT: 0.093 INCHES NOMINAL IN
•
CUT TYPE: RECTANGULAR RETAINER
•
ANGLE: 45.0 DEGREES NOMINAL
•
MATERIAL: PLASTIC OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
CENTER HOLE DIAMETER: 2.125 INCHES NOMINAL IN
•
JOINT TYPE: SCARF-BUTT RETAINER
•
PERIPHERAL DIAMETER: 2.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.093 INCHES NOMINAL IN
CUT TYPERECTANGULAR RETAINER
ANGLE45.0 DEGREES NOMINAL
MATERIALPLASTIC OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE
CENTER HOLE DIAMETER2.125 INCHES NOMINAL IN
JOINT TYPESCARF-BUTT RETAINER
PERIPHERAL DIAMETER2.375 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.0465 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
58731-0000Interchangeable
interchangeable cross-reference
interchangeable
W-3050Interchangeable
interchangeable cross-reference
interchangeable
B16.22Interchangeable
interchangeable cross-reference
interchangeable
001310Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5Y12521-8?
5Y12521-8 is a RETAINER,PACKING.
What parts can replace 5Y12521-8?
There are 4 known substitutes for 5Y12521-8: 58731-0000, W-3050, B16.22 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5Y12521-8?
5Y12521-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-113-1655. 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