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Technical Data Sheet
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72603A4 — 72603A4

✓ Government record, cited
DASSAULT AVIATION · NUT WASHER
PRODUCT OVERVIEW

72603A4: 72603A4.

The 72603A4 is a DASSAULT AVIATION industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-454-3618, 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
72603A4
NSN: 5310-01-454-3618
FSC: 5310 — Nuts and Washers
CAGE: F6117 — DASSAULT AVIATION (FRA)
SPECIFICATIONS
Part Number72603A4
ManufacturerDASSAULT AVIATION
NSN5310-01-454-3618
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 72603A4 · DASSAULT AVIATION ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
•
NUT DIAMETER: 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 631 OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN
NUT DIAMETER0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 631 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
RT101W4PSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 72603A4?
72603A4 is a 72603A4 manufactured by DASSAULT AVIATION.
What parts can replace 72603A4?
There is 1 known substitute for 72603A4: RT101W4P. Substitute compatibility should be verified for your specific system.
What is the NSN for 72603A4?
72603A4 is cataloged in the U.S. Government catalog under NSN 5310-01-454-3618. This indicates validated use in U.S. government and defense supply chains.
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