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8102B0256-4 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8102B0256-4: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, nut_style: HEXAGON, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-202-0661, 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
8102B0256-4
NSN: 5310-00-202-0661
FSC: 5310 — Nuts and Washers
CAGE: 06540 — NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
nut_styleHEXAGON
nut_height0.250 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentNICKEL OVERALL
width_across_flats0.188 INCHES NOMINAL IN
nominal_thread_size0.086 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch56
material_document_and_classificationQQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-202-0661
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8102B0256-4 · 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
•
WIDTH ACROSS FLATS: 0.188 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-N-290,CLASS 1,TYPE FC FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.086 INCHES IN
•
NUT HEIGHT: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.188 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-N-290,CLASS 1,TYPE FC FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES IN
NUT HEIGHT0.250 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OVERALL
NUT STYLEHEXAGON
THREAD CLASS2B
SUBSTITUTES & CROSS-REFERENCES 2
9002-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
859-002-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8102B0256-4?
8102B0256-4 is a NUT,PLAIN,HEXAGON.
What parts can replace 8102B0256-4?
There are 2 known substitutes for 8102B0256-4: 9002-002, 859-002-002. Substitute compatibility should be verified for your specific system.
What is the NSN for 8102B0256-4?
8102B0256-4 is cataloged in the U.S. Government catalog under NSN 5310-00-202-0661. This indicates validated use in U.S. government and defense supply chains.
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