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6111403-4 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6111403-4: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, nut_length: 0.200 INCHES NOMINAL IN, nut_diameter: 3.250 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), flange_thickness: 1.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-442-3603, 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
6111403-4
NSN: 5310-01-442-3603
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
nut_length0.200 INCHES NOMINAL IN
nut_diameter3.250 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
flange_thickness1.120 INCHES NOMINAL IN
special_features1 HOLE;0.187 0D LOCATED IN FLANGE OF SLEEVE NUT
thread_directionRIGHT-HAND
nominal_thread_size1.875 INCHES IN
thread_quantity_per_inch12
NSN5310-01-442-3603
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6111403-4 · 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
•
NUT LENGTH: 0.200 INCHES NOMINAL IN
•
FLANGE THICKNESS: 1.120 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.875 INCHES IN
•
NUT DIAMETER: 3.250 INCHES NOMINAL IN
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
NUT LENGTH0.200 INCHES NOMINAL IN
FLANGE THICKNESS1.120 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.875 INCHES IN
NUT DIAMETER3.250 INCHES NOMINAL IN
SPECIAL FEATURES1 HOLE;0.187 0D LOCATED IN FLANGE OF SLEEVE NUT
THREAD CLASS2B
THREAD QUANTITY PER INCH12
MATERIALNICKEL ALLOY 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 1
581-6405750 AHWA FIND 4Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6111403-4?
6111403-4 is a NUT,SLEEVE.
What parts can replace 6111403-4?
There is 1 known substitute for 6111403-4: 581-6405750 AHWA FIND 4. Substitute compatibility should be verified for your specific system.
What is the NSN for 6111403-4?
6111403-4 is cataloged in the U.S. Government catalog under NSN 5310-01-442-3603. 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.