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D659-0043 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

D659-0043: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_length: 0.250 INCHES NOMINAL IN, thread_class: 2B, boss_diameter: 0.170 INCHES NOMINAL OVERALL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), boss_thickness: 0.210 INCHES NOMINAL OVERALL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-113-0574, 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
D659-0043
NSN: 5310-01-113-0574
NIINs: 011130574, 011932655
FSC: 5310 — Nuts and Washers
CAGE: 06090 — TE CONNECTIVITY CORPORATION DBA RAYCHEM PRODUCT DIVISION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_length0.250 INCHES NOMINAL IN
thread_class2B
boss_diameter0.170 INCHES NOMINAL OVERALL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
boss_thickness0.210 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.138 INCHES IN
cross-sectional_shapeSQUARE NUT
nut_width_across_flats0.250 INCHES NOMINAL IN
end_item_identificationAN/ALQ-131 BLOCK I
NSN5310-01-113-0574
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D659-0043 · 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: 0.250 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NUT WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
BOSS THICKNESS: 0.210 INCHES NOMINAL OVERALL IN
•
CROSS-SECTIONAL SHAPE: SQUARE NUT
•
BOSS DIAMETER: 0.170 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.250 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NUT WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
BOSS THICKNESS0.210 INCHES NOMINAL OVERALL IN
CROSS-SECTIONAL SHAPESQUARE NUT
BOSS DIAMETER0.170 INCHES NOMINAL OVERALL IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B
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 D659-0043?
D659-0043 is a NUT,SLEEVE.
What is the NSN for D659-0043?
D659-0043 is cataloged in the U.S. Government catalog under NSN 5310-01-113-0574. 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.