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12404D18 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12404D18: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, nut_length: 0.438 INCHES NOMINAL IN, nut_diameter: 3.345 INCHES MINIMUM AND 3.346 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNS, flange_diameter: 3.620 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-362-1467, 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
12404D18
NSN: 5310-01-362-1467
FSC: 5310 — Nuts and Washers
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
nut_length0.438 INCHES NOMINAL IN
nut_diameter3.345 INCHES MINIMUM AND 3.346 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNS
flange_diameter3.620 INCHES NOMINAL IN
flange_thickness0.750 INCHES NOMINAL IN
thread_directionLEFT-HAND
nominal_thread_size2.500 INCHES IN
cross-sectional_shapeROUND NUT
drilled_hole_diameter0.344 INCHES NOMINAL IN
hole_type_and_quantity2 DRILLED
NSN5310-01-362-1467
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12404D18 · 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
•
FLANGE DIAMETER: 3.620 INCHES NOMINAL IN
•
NUT LENGTH: 0.438 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.750 INCHES NOMINAL IN
•
THREAD SERIES: UNS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 2.500 INCHES IN
•
NUT DIAMETER: 3.345 INCHES MINIMUM AND 3.346 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER3.620 INCHES NOMINAL IN
NUT LENGTH0.438 INCHES NOMINAL IN
FLANGE THICKNESS0.750 INCHES NOMINAL IN
THREAD SERIESUNS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE2.500 INCHES IN
NUT DIAMETER3.345 INCHES MINIMUM AND 3.346 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND NUT
DRILLED HOLE DIAMETER0.344 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 2
12404D18AReference document
Same NSN cross-reference
Reference document — Secondary reference
12404D18BReference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 12404D18?
12404D18 is a NUT,SLEEVE.
What parts can replace 12404D18?
There are 2 known substitutes for 12404D18: 12404D18A, 12404D18B. Substitute compatibility should be verified for your specific system.
What is the NSN for 12404D18?
12404D18 is cataloged in the U.S. Government catalog under NSN 5310-01-362-1467. 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.