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542-3979-002 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

542-3979-002: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2017 OVERALL, nut_style: SLEEVE, nut_length: 0.39875 INCHES MINIMUM AND 0.39925 INCHES MAXIMUM IN, thread_class: 2B, boss_diameter: 0.2495 INCHES MINIMUM AND 0.2498 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-680-6868, 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
542-3979-002
NSN: 5310-00-680-6868
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2017 OVERALL
nut_styleSLEEVE
nut_length0.39875 INCHES MINIMUM AND 0.39925 INCHES MAXIMUM IN
thread_class2B
boss_diameter0.2495 INCHES MINIMUM AND 0.2498 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
boss_thickness0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
thread_directionRIGHT-HAND
surface_treatmentCHROMATE OVERALL
nominal_thread_size0.138 INCHES IN
cross-sectional_shapeHEXAGONAL NUT
nut_width_across_flats0.375 INCHES NOMINAL IN
NSN5310-00-680-6868
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 542-3979-002 · 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: 0.39875 INCHES MINIMUM AND 0.39925 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 580-0036-00,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NUT WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
BOSS THICKNESS: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.39875 INCHES MINIMUM AND 0.39925 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION580-0036-00,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NUT WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
BOSS THICKNESS0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL SHAPEROUND BOSS
CROSS-SECTIONAL SHAPEHEXAGONAL NUT
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 542-3979-002?
542-3979-002 is a NUT,SLEEVE.
What is the NSN for 542-3979-002?
542-3979-002 is cataloged in the U.S. Government catalog under NSN 5310-00-680-6868. 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.