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Technical Data Sheet
PartsTable / COMPONENT / 30-4.5
30-4.5 ✓ 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 30-4.5 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 5340-01-305-0285, 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
30-4.5
NSN: 5340-01-305-0285
FSC: 5340
CAGE: 82851 — NATIONAL MFG CO DBA NATIONAL MFG SALES CO (USA)
SPECIFICATIONS
Part Number30-4.5
NSN5340-01-305-0285
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 30-4.5 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
•
LEAF WIDTH: 1.500 INCHES NOMINAL IN
•
HINGE MOUNTING TYPE: FULL SURFACE
•
REVERSIBLE FEATURE: NOT INCLUDED
•
KNUCKLE QUANTITY: 3
•
MOUNTING HOLE QUANTITY: 3
•
SLOTTED LEAF LENGTH: 4.560 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE SAFETY
TECHNICAL CHARACTERISTICS (FLIS)
LEAF WIDTH1.500 INCHES NOMINAL IN
HINGE MOUNTING TYPEFULL SURFACE
SPECIAL FEATURESHASP SLOT 1.560 IN. LG BY 0.470 IN. W SPACED 0.220 IN. FROM ONE END IN
REVERSIBLE FEATURENOT INCLUDED
KNUCKLE QUANTITY3
MOUNTING HOLE QUANTITY3
SLOTTED LEAF LENGTH4.560 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE SAFETY
KNUCKLE TYPEFRICTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3045Upgraded Successor
successor cross-reference
successor
1560H13-168Interchangeable
interchangeable cross-reference
interchangeable
47-649-015-1Interchangeable
interchangeable cross-reference
interchangeable
3045-051Interchangeable
interchangeable cross-reference
interchangeable
5250E9178Interchangeable
interchangeable cross-reference
interchangeable
903213Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30-4.5?
30-4.5 is a 30-4.5.
What parts can replace 30-4.5?
There are 14 known substitutes for 30-4.5: 3045, 1560H13-168, 47-649-015-1 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30-4.5?
30-4.5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-305-0285. 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