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4026464 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4026464: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 5.440 INCHES MINIMUM AND 5.450 INCHES MAXIMUM IN, material_thickness: 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN, external_prebent_key_width: 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN, overall_distance_including_keys: 5.935 INCHES MINIMUM AND 5.955 INCHES MAXIMUM IN, material_document_and_classification: AMS5599 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-377-3937, 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
4026464
NSN: 5310-00-377-3937
FSC: 5310 — Nuts and Washers
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter5.440 INCHES MINIMUM AND 5.450 INCHES MAXIMUM IN
material_thickness0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
external_key_quantity8
external_prebent_key_width0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
overall_distance_including_keys5.935 INCHES MINIMUM AND 5.955 INCHES MAXIMUM IN
material_document_and_classificationAMS5599 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-377-3937
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4026464 · 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 DISTANCE INCLUDING KEYS: 5.935 INCHES MINIMUM AND 5.955 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5599 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 8
•
EXTERNAL PREBENT KEY WIDTH: 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 5.440 INCHES MINIMUM AND 5.450 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS5.935 INCHES MINIMUM AND 5.955 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5599 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY8
EXTERNAL PREBENT KEY WIDTH0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER5.440 INCHES MINIMUM AND 5.450 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 1
5310PL0723164Reference 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 4026464?
4026464 is a WASHER,KEY.
What parts can replace 4026464?
There is 1 known substitute for 4026464: 5310PL0723164. Substitute compatibility should be verified for your specific system.
What is the NSN for 4026464?
4026464 is cataloged in the U.S. Government catalog under NSN 5310-00-377-3937. 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.