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20366-001 — FLUSHING BLOCK,HYDRAULIC SYSTEM

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

20366-001: FLUSHING BLOCK,HYDRAULIC SYSTEM.

FLUSHING BLOCK,HYDRAULIC SYSTEM. Key specifications include material: STEEL CORROSION RESISTING, design_type: SOLID, end_diameter: 0.2050 INCHES NOMINAL IN, bore_diameter: 0.5062 INCHES NOMINAL IN, overall_height: 0.5305 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-042-3200, 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
20366-001
NSN: 5315-01-042-3200
NIINs: 010423200, 010424979, 010425660, 010429063, 010429120, 010441669, 010512006, 011036392, 011647130, 011784882, 011896655
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
design_typeSOLID
end_diameter0.2050 INCHES NOMINAL IN
bore_diameter0.5062 INCHES NOMINAL IN
overall_height0.5305 INCHES NOMINAL IN
style_designatorSEAT
bore_taper_in_deg40.0
counterbore_length0.1620 INCHES NOMINAL IN
first_step_diameter0.8751 INCHES NOMINAL IN
counterbore_diameter0.5368 INCHES NOMINAL IN
distance_from_end_to_first_step0.5192 INCHES NOMINAL IN
general_characteristics_item_descriptionCRES 416,QQ-S-764
NSN5315-01-042-3200
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20366-001 · 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
•
CHAMFER LENGTH: 0.660 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
UNDER HEAD LENGTH: 0.065 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
FIRST HOLE DIAMETER: 0.078 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
PIN HEAD DIAMETER: 0.375 INCHES NOMINAL IN
•
DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CHAMFER LENGTH0.660 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
UNDER HEAD LENGTH0.065 INCHES NOMINAL IN
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
FIRST HOLE DIAMETER0.078 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
PIN HEAD DIAMETER0.375 INCHES NOMINAL IN
DIAMETER0.250 INCHES NOMINAL IN
HEAD STYLEFLAT
HEIGHT0.070 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
20366-001FIND9Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 20366-001?
20366-001 is a FLUSHING BLOCK,HYDRAULIC SYSTEM.
What parts can replace 20366-001?
There is 1 known substitute for 20366-001: 20366-001FIND9. Substitute compatibility should be verified for your specific system.
What is the NSN for 20366-001?
20366-001 is cataloged in the U.S. Government catalog under NSN 5315-01-042-3200. 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.