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SXAI-145640 — SXAI-145640

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SXAI-145640: SXAI-145640.

The SXAI-145640 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-453-4722, 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
SXAI-145640
NSN: 5310-01-453-4722
FSC: 5310 — Nuts and Washers
CAGE: 4XNY8 — MATTHEW WARREN, INC. DIV MARYLAND PRECISION SPRING (USA)
SPECIFICATIONS
Part NumberSXAI-145640
NSN5310-01-453-4722
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SXAI-145640 · OEM ⚠ 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
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
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STYLE DESIGNATOR: SPRING TENSION
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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OUTSIDE DIAMETER: 1.437 INCHES MINIMUM AND 1.449 INCHES MAXIMUM IN
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MATERIAL THICKNESS: 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
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SURFACE TREATMENT: PASSIVATE OVERALL
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MATERIAL: STEEL COMP 631 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.069 INCHES MINIMUM AND 0.079 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5529 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.437 INCHES MINIMUM AND 1.449 INCHES MAXIMUM IN
MATERIAL THICKNESS0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 631 OVERALL
HOLE DIAMETER0.563 INCHES MINIMUM AND 0.568 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
DAA7271P039Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SXAI-145640?
SXAI-145640 is a SXAI-145640.
What parts can replace SXAI-145640?
There is 1 known substitute for SXAI-145640: DAA7271P039. Substitute compatibility should be verified for your specific system.
What is the NSN for SXAI-145640?
SXAI-145640 is cataloged in the U.S. Government catalog under NSN 5310-01-453-4722. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.