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NS202749-4-15 — NS202749-4-15

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NS202749-4-15: NS202749-4-15.

The NS202749-4-15 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-01-454-5936, 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
NS202749-4-15
NSN: 5310-01-454-5936
FSC: 5310 — Nuts and Washers
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)
SPECIFICATIONS
Part NumberNS202749-4-15
NSN5310-01-454-5936
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NS202749-4-15 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
PLATE THICKNESS: 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
•
NUT LENGTH: 1.292 INCHES MAXIMUM IN
•
PLATE WIDTH: 0.554 INCHES MAXIMUM IN
•
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
•
MOUNTING HOLE ARRANGEMENT STYLE: 2 HOLES
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
PLATE THICKNESS0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
NUT LENGTH1.292 INCHES MAXIMUM IN
PLATE WIDTH0.554 INCHES MAXIMUM IN
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
MOUNTING HOLE ARRANGEMENT STYLE2 HOLES
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE SHELL
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
NUT COUNTERBORE DEPTH0.937 INCHES MINIMUM FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 3
03A120-4A15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BFN120-4-15Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
F13742-15-4Reference document
Same NSN cross-reference
Reference document — Secondary 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 NS202749-4-15?
NS202749-4-15 is a NS202749-4-15.
What parts can replace NS202749-4-15?
There are 3 known substitutes for NS202749-4-15: 03A120-4A15, BFN120-4-15, F13742-15-4. Substitute compatibility should be verified for your specific system.
What is the NSN for NS202749-4-15?
NS202749-4-15 is cataloged in the U.S. Government catalog under NSN 5310-01-454-5936. 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.