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5525753 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5525753: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, hole_diameter: 0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM, outside_diameter: 1.590 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN, material_thickness: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-469-9748, 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
5525753
NSN: 5310-01-469-9748
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
hole_diameter0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
outside_diameter1.590 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
material_thickness0.250 INCHES NOMINAL IN
NSN5310-01-469-9748
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5525753 · 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
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
•
OUTSIDE DIAMETER: 1.590 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.250 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 4140 OVERALL
•
HOLE DIAMETER: 0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
OUTSIDE DIAMETER1.590 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
MATERIAL THICKNESS0.250 INCHES NOMINAL IN
MATERIALSTEEL COMP 4140 OVERALL
HOLE DIAMETER0.630 INCHES MINIMUM AND 0.635 INCHES MAXIMUM 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

No substitute or cross-reference records for this part.

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 5525753?
5525753 is a WASHER,KEY.
What is the NSN for 5525753?
5525753 is cataloged in the U.S. Government catalog under NSN 5310-01-469-9748. 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.