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Technical Data Sheet
PartsTable / O-RING / ZUS.4WRZ16.-51 ITEM 300
ZUS.4WRZ16.-51 ITEM 300 ✓ 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 ZUS.4WRZ16.-51 ITEM 300 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-027-4562, 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
ZUS.4WRZ16.-51 ITEM 300
NSN: 5331-01-027-4562
FSC: 5331 — O-RING
CAGE: 27005 — BOSCH REXROTH CORPORATION DIV INDUSTRIAL HYDRAULICS (USA)
SPECIFICATIONS
Part NumberZUS.4WRZ16.-51 ITEM 300
NSN5331-01-027-4562
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ZUS.4WRZ16.-51 ITEM 300 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: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
18050Interchangeable
interchangeable cross-reference
interchangeable
008200Interchangeable
interchangeable cross-reference
interchangeable
DB63F2.10/315/5 ITEM 46Interchangeable
Same NIIN cross-reference
interchangeable
008200/8Interchangeable
Same NIIN cross-reference
interchangeable
R900008200Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ZUS.4WRZ16.-51 ITEM 300?
ZUS.4WRZ16.-51 ITEM 300 is a ZUS.4WRZ16.-51 ITEM 300.
What parts can replace ZUS.4WRZ16.-51 ITEM 300?
There are 5 known substitutes for ZUS.4WRZ16.-51 ITEM 300: 18050, 008200, DB63F2.10/315/5 ITEM 46 and 2 more. Substitute compatibility should be verified for your specific system.
Is ZUS.4WRZ16.-51 ITEM 300 still available?
ZUS.4WRZ16.-51 ITEM 300 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026