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0613056 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

0613056: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: CORK OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.125 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, overall_diameter: 0.406 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-599-0302, 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
0613056
NSN: 5310-00-599-0302
FSC: 5310 — Nuts and Washers
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
materialCORK OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter0.125 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
overall_diameter0.406 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classification711,FSCM 71379 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-599-0302
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0613056 · 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: 0.406 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 711,FSCM 71379 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: CORK OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.125 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.406 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION711,FSCM 71379 MFR REF SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCORK OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.125 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
THICKNESS0.031 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
S350Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0613056?
0613056 is a WASHER,FLAT.
What parts can replace 0613056?
There is 1 known substitute for 0613056: S350. Substitute compatibility should be verified for your specific system.
What is the NSN for 0613056?
0613056 is cataloged in the U.S. Government catalog under NSN 5310-00-599-0302. 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.