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2528597 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2528597: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OVERALL, hole_diameter: 0.342 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN, outside_diameter: 2.000 INCHES NOMINAL IN, material_thickness: 0.125 INCHES NOMINAL IN, external_prebent_key_width: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, external_prebent_key_length: 0.234 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-183-4039, 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
2528597
NSN: 5310-01-183-4039
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
hole_diameter0.342 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN
outside_diameter2.000 INCHES NOMINAL IN
material_thickness0.125 INCHES NOMINAL IN
external_prebent_key_width0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
external_prebent_key_length0.234 INCHES NOMINAL IN
material_document_and_classificationQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
NSN5310-01-183-4039
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2528597 · 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
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY LENGTH: 0.234 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1020 OVERALL
•
HOLE DIAMETER: 0.342 INCHES MINIMUM AND 0.352 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.505 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY LENGTH0.234 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.308 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1020 OVERALL
HOLE DIAMETER0.342 INCHES MINIMUM AND 0.352 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 2528597?
2528597 is a WASHER,KEY.
What is the NSN for 2528597?
2528597 is cataloged in the U.S. Government catalog under NSN 5310-01-183-4039. 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.