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5169320 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5169320: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thickness: 0.032 INCHES NOMINAL IN, hole_diameter: 0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN, overall_diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-906-9780, 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
5169320
NSN: 5310-00-906-9780
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thickness0.032 INCHES NOMINAL IN
hole_diameter0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
overall_diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-906-9780
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5169320 · 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: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
•
THICKNESS: 0.032 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.506 INCHES MINIMUM AND 0.526 INCHES MAXIMUM IN
THICKNESS0.032 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 3
642AS0690-5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
4M36-04003Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10121812Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5169320?
5169320 is a WASHER,FLAT.
What parts can replace 5169320?
There are 3 known substitutes for 5169320: 642AS0690-5, 4M36-04003, 10121812. Substitute compatibility should be verified for your specific system.
What is the NSN for 5169320?
5169320 is cataloged in the U.S. Government catalog under NSN 5310-00-906-9780. 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.