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6027490 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6027490: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OVERALL, nut_style: SLEEVE, nut_length: 0.062 INCHES NOMINAL IN, nut_diameter: 0.312 INCHES NOMINAL IN, thread_class: 2B, boss_diameter: 0.218 INCHES NOMINAL SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-487-5581, 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
6027490
NSN: 5310-00-487-5581
FSC: 5310 — Nuts and Washers
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OVERALL
nut_styleSLEEVE
nut_length0.062 INCHES NOMINAL IN
nut_diameter0.312 INCHES NOMINAL IN
thread_class2B
boss_diameter0.218 INCHES NOMINAL SECOND END IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
boss_thickness0.094 INCHES NOMINAL SECOND END IN
thread_directionRIGHT-HAND
countersink_angle82.0 DEGREES NOMINAL SECOND END
nominal_thread_size0.138 INCHES IN
cross-sectional_shapeROUND OVERALL
NSN5310-00-487-5581
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6027490 · 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: 0.062 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/5 T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.312 INCHES NOMINAL IN
•
BOSS THICKNESS: 0.141 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.062 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/5 T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.312 INCHES NOMINAL IN
BOSS THICKNESS0.141 INCHES NOMINAL FIRST END IN
BOSS THICKNESS0.094 INCHES NOMINAL SECOND END IN
CROSS-SECTIONAL SHAPEROUND OVERALL
BOSS DIAMETER0.190 INCHES NOMINAL FIRST END 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
00769Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6027490?
6027490 is a NUT,SLEEVE.
What parts can replace 6027490?
There is 1 known substitute for 6027490: 00769. Substitute compatibility should be verified for your specific system.
What is the NSN for 6027490?
6027490 is cataloged in the U.S. Government catalog under NSN 5310-00-487-5581. 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.