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4503226 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4503226: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OVERALL, hole_diameter: 0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN, first_key_width: 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN, outside_diameter: 1.155 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN, second_key_width: 0.179 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN, special_features: ONE PREBENT KEY WITH RADIUS OF .010 +/- .005. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-485-6079, 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
4503226
NSN: 5310-01-485-6079
FSC: 5310 — Nuts and Washers
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OVERALL
hole_diameter0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
first_key_width0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
outside_diameter1.155 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN
second_key_width0.179 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
special_featuresONE PREBENT KEY WITH RADIUS OF .010 +/- .005
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
end_item_identification2835013692818,BLACKHAWK HELICOPTER
material_document_and_classificationASTMA666,TY301 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_end_of_key0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
NSN5310-01-485-6079
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4503226 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SECOND KEY WIDTH: 0.179 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA666,TY301 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.155 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN
•
FIRST KEY WIDTH: 0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO END OF KEY: 0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SECOND KEY WIDTH0.179 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA666,TY301 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.155 INCHES MINIMUM AND 1.165 INCHES MAXIMUM IN
FIRST KEY WIDTH0.235 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN
MATERIAL THICKNESS0.033 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO END OF KEY0.575 INCHES MINIMUM AND 0.585 INCHES MAXIMUM IN
SPECIAL FEATURESONE PREBENT KEY WITH RADIUS OF .010 +/- .005
SURFACE TREATMENTPASSIVATE OVERALL
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4503226?
4503226 is a WASHER,KEY.
What is the NSN for 4503226?
4503226 is cataloged in the U.S. Government catalog under NSN 5310-01-485-6079. 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.