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74A450853-2003 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74A450853-2003: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 1.1910 INCHES MINIMUM AND 1.1915 INCHES MAXIMUM IN, recess_diameter: 1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN, shoulder_height: 0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN, outside_diameter: 1.624 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-112-7949, 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
74A450853-2003
NSN: 5310-01-112-7949
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter1.1910 INCHES MINIMUM AND 1.1915 INCHES MAXIMUM IN
recess_diameter1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
shoulder_height0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
outside_diameter1.624 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
material_thickness0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NSN5310-01-112-7949
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74A450853-2003 · 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
•
SHOULDER HEIGHT: 0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9,TEMPER T73 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/9,TEMPER T7351 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/11,TEMPER T73510 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/11,TEMPER T73511 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.624 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
•
RECESS DIAMETER: 1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 7075 OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9,TEMPER T73 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/9,TEMPER T7351 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/11,TEMPER T73510 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/11,TEMPER T73511 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.624 INCHES MINIMUM AND 1.626 INCHES MAXIMUM IN
MATERIAL THICKNESS0.058 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
SHOULDER DIAMETER1.3140 INCHES MINIMUM AND 1.3145 INCHES MAXIMUM IN
RECESS DIAMETER1.2510 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 7075 OVERALL
HOLE DIAMETER1.1910 INCHES MINIMUM AND 1.1915 INCHES MAXIMUM IN
RECESS ANGLE90.0 DEGREES NOMINAL
SUBSTITUTES & CROSS-REFERENCES 1
10122173Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 74A450853-2003?
74A450853-2003 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace 74A450853-2003?
There is 1 known substitute for 74A450853-2003: 10122173. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A450853-2003?
74A450853-2003 is cataloged in the U.S. Government catalog under NSN 5310-01-112-7949. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.