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Technical Data Sheet
D4344 ✓ 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 BUTTON,PLUG is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OR STEEL COMP 1050, head_height: 0.063 INCHES NOMINAL IN, overall_height: 0.156 INCHES NOMINAL IN, style_designator: STANDARD, head_outside_diameter: 0.656 INCHES NOMINAL IN, hole_accommodation_diameter: 0.438 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 5340-01-064-3563, 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
D4344
NSN: 5340-01-064-3563
FSC: 5340
CAGE: 57771 — EDWIN B. STIMPSON COMPANY, INC. DBA STIMPSON (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1050
head_height0.063 INCHES NOMINAL IN
overall_height0.156 INCHES NOMINAL IN
prong_quantity8
style_designatorSTANDARD
head_outside_diameter0.656 INCHES NOMINAL IN
hole_accommodation_diameter0.438 INCHES NOMINAL IN
material_accommodated_thickness0.016 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
NSN5340-01-064-3563
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D4344 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
MATERIAL ACCOMMODATED THICKNESS: 0.016 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
HOLE ACCOMMODATION DIAMETER: 0.438 INCHES NOMINAL IN
STYLE DESIGNATOR: STANDARD
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1050
PRONG QUANTITY: 8
HEAD OUTSIDE DIAMETER: 0.656 INCHES NOMINAL IN
HEAD HEIGHT: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL ACCOMMODATED THICKNESS0.016 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
HOLE ACCOMMODATION DIAMETER0.438 INCHES NOMINAL IN
STYLE DESIGNATORSTANDARD
MATERIALSTEEL COMP 1010 OR STEEL COMP 1050
PRONG QUANTITY8
HEAD OUTSIDE DIAMETER0.656 INCHES NOMINAL IN
OVERALL HEIGHT0.156 INCHES NOMINAL IN
HEAD HEIGHT0.063 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
51043Upgraded Successor
successor cross-reference
successor
51917-17Upgraded Successor
successor cross-reference
successor
800511-007Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D4344?
D4344 is a BUTTON,PLUG.
What parts can replace D4344?
There are 3 known substitutes for D4344: 51043, 51917-17, 800511-007. Substitute compatibility should be verified for your specific system.
What is the NSN for D4344?
D4344 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-064-3563. This indicates validated use in U.S. government and defense supply chains.
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