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03040-283 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03040-283: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.251 INCHES NOMINAL IN, recess_diameter: 0.284 INCHES NOMINAL IN, outside_diameter: 0.365 INCHES NOMINAL IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-113-8555, 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
03040-283
NSN: 5310-00-113-8555
FSC: 5310 — Nuts and Washers
CAGE: 31361 — WOODWARD, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter0.251 INCHES NOMINAL IN
recess_diameter0.284 INCHES NOMINAL IN
outside_diameter0.365 INCHES NOMINAL IN
style_designatorRECESSED
material_thickness0.031 INCHES NOMINAL IN
NSN5310-00-113-8555
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03040-283 · 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
•
STYLE DESIGNATOR: RECESSED
•
OUTSIDE DIAMETER: 0.365 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.284 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.251 INCHES NOMINAL IN
•
RECESS ANGLE: 90.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER0.365 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
RECESS DIAMETER0.284 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.251 INCHES NOMINAL IN
RECESS ANGLE90.0 DEGREES NOMINAL
SUBSTITUTES & CROSS-REFERENCES 1
186058Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 03040-283?
03040-283 is a WASHER,RECESSED.
What parts can replace 03040-283?
There is 1 known substitute for 03040-283: 186058. Substitute compatibility should be verified for your specific system.
What is the NSN for 03040-283?
03040-283 is cataloged in the U.S. Government catalog under NSN 5310-00-113-8555. 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.