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Technical Data Sheet
PartsTable / COMPONENT / DD-4633 REF NO.25
DD-4633 REF NO.25 ✓ 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 DD-4633 REF NO.25 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-091-8486, 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
DD-4633 REF NO.25
NSN: 5330-01-091-8486
FSC: 5330
CAGE: 53424 — CUNICO CORPORATION (USA)
SPECIFICATIONS
Part NumberDD-4633 REF NO.25
NSN5330-01-091-8486
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DD-4633 REF NO.25 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: 5.297 INCHES MINIMUM AND 5.327 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
APERTURE DIAMETER: 4.735 INCHES MINIMUM AND 4.765 INCHES MAXIMUM IN
•
CROSS-SECTIONAL THICKNESS: 0.010 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER5.297 INCHES MINIMUM AND 5.327 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
STYLE DESIGNATORCIRCULAR
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
APERTURE DIAMETER4.735 INCHES MINIMUM AND 4.765 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS0.010 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
412154-1Interchangeable
interchangeable cross-reference
interchangeable
18596Interchangeable
interchangeable cross-reference
interchangeable
98005R91Interchangeable
interchangeable cross-reference
interchangeable
455071Interchangeable
interchangeable cross-reference
interchangeable
7503Interchangeable
interchangeable cross-reference
interchangeable
6203ZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD-4633 REF NO.25?
DD-4633 REF NO.25 is a DD-4633 REF NO.25.
What parts can replace DD-4633 REF NO.25?
There are 12 known substitutes for DD-4633 REF NO.25: 412154-1, 18596, 98005R91 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD-4633 REF NO.25?
DD-4633 REF NO.25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-091-8486. 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