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PartsTable / COMPONENT / 1A7434
1A7434 ✓ 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 TUBE ASSEMBLY,METAL is a the manufacturer industrial component. Key specifications include design_form: PREBENT, special_features: U/O C17 ENGINE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-354-1719, 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
1A7434
NSN: 5330-00-354-1719
FSC: 5330
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
design_formPREBENT
special_featuresU/O C17 ENGINE
NSN5330-00-354-1719
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1A7434 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
•
LARGEST BOLT HOLE DIAMETER: 0.531 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
SMALLEST BOLT HOLE DIAMETER: 0.437 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH5.250 INCHES NOMINAL IN
LARGEST BOLT HOLE DIAMETER0.531 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
SMALLEST BOLT HOLE DIAMETER0.437 INCHES NOMINAL IN
OVERALL WIDTH3.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
SI-8249Interchangeable
interchangeable cross-reference
interchangeable
25741Interchangeable
interchangeable cross-reference
interchangeable
SM-B-2016077Interchangeable
interchangeable cross-reference
interchangeable
BZ2RSTInterchangeable
interchangeable cross-reference
interchangeable
GX18967-16Interchangeable
interchangeable cross-reference
interchangeable
AM25741Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1A7434?
1A7434 is a TUBE ASSEMBLY,METAL.
What parts can replace 1A7434?
There are 14 known substitutes for 1A7434: SI-8249, 25741, SM-B-2016077 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1A7434?
1A7434 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-354-1719. 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