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D2153 PIECE 18 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

D2153 PIECE 18: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, hole_diameter: 2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN, overall_diameter: 4.188 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-117-0695, 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
D2153 PIECE 18
NSN: 5310-01-117-0695
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
hole_diameter2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN
overall_diameter4.188 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationASTM A-366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-117-0695
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D2153 PIECE 18 · 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: 4.188 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A-366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN
•
THICKNESS: 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER4.188 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A-366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER2.844 INCHES MINIMUM AND 2.906 INCHES MAXIMUM IN
THICKNESS0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
803-2177140-XX- 18Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 D2153 PIECE 18?
D2153 PIECE 18 is a WASHER,FLAT.
What parts can replace D2153 PIECE 18?
There is 1 known substitute for D2153 PIECE 18: 803-2177140-XX- 18. Substitute compatibility should be verified for your specific system.
What is the NSN for D2153 PIECE 18?
D2153 PIECE 18 is cataloged in the U.S. Government catalog under NSN 5310-01-117-0695. 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.