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517442N — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

517442N: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, thickness: 0.030 INCHES NOMINAL IN, hole_diameter: 0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN, overall_diameter: 0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, surface_treatment: NICKEL OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-331-6296, 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
517442N
NSN: 5310-01-331-6296
FSC: 5310 — Nuts and Washers
CAGE: 06980 — COMMUNICATIONS & POWER INDUSTRIES LLC DBA CPI DIV MICROWAVE POWER PRODUCTS DIVISION - EIMAC OPERATIONS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thickness0.030 INCHES NOMINAL IN
hole_diameter0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
overall_diameter0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
surface_treatmentNICKEL OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-331-6296
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 517442N · 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
•
OVERALL DIAMETER: 0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: NICKEL OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
•
THICKNESS: 0.030 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTNICKEL OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.119 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
THICKNESS0.030 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
J30-0002-010Reference 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 517442N?
517442N is a WASHER,FLAT.
What parts can replace 517442N?
There is 1 known substitute for 517442N: J30-0002-010. Substitute compatibility should be verified for your specific system.
What is the NSN for 517442N?
517442N is cataloged in the U.S. Government catalog under NSN 5310-01-331-6296. 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.