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201244-3 — WASHER,KEYWAY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

201244-3: WASHER,KEYWAY.

The WASHER,KEYWAY is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 1100 OVERALL, hole_diameter: 4.240 INCHES NOMINAL IN, outside_diameter: 5.100 INCHES NOMINAL IN, material_thickness: 0.010 INCHES NOMINAL IN, external_keyway_width: 0.390 INCHES NOMINAL IN, external_keyway_length: 0.280 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-596-4601, 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
201244-3
NSN: 5310-00-596-4601
FSC: 5310 — Nuts and Washers
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100 OVERALL
hole_diameter4.240 INCHES NOMINAL IN
outside_diameter5.100 INCHES NOMINAL IN
material_thickness0.010 INCHES NOMINAL IN
external_keyway_width0.390 INCHES NOMINAL IN
external_keyway_length0.280 INCHES NOMINAL IN
material_document_and_classificationQQ-A-561 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-596-4601
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 201244-3 · 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
•
EXTERNAL KEYWAY WIDTH: 0.390 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-561 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 5.100 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.010 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 1100 OVERALL
•
HOLE DIAMETER: 4.240 INCHES NOMINAL IN
•
EXTERNAL KEYWAY LENGTH: 0.280 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EXTERNAL KEYWAY WIDTH0.390 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-561 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER5.100 INCHES NOMINAL IN
MATERIAL THICKNESS0.010 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 1100 OVERALL
HOLE DIAMETER4.240 INCHES NOMINAL IN
EXTERNAL KEYWAY LENGTH0.280 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

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 201244-3?
201244-3 is a WASHER,KEYWAY.
What is the NSN for 201244-3?
201244-3 is cataloged in the U.S. Government catalog under NSN 5310-00-596-4601. 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.