PartsTable
Technical Data Sheet
102-4B2 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.057 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-687-6293, 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
102-4B2
NSN: 5310-00-687-6293
FSC: 5310
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.057 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND PHOSPHATE OVERALL
width_across_flats0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
nominal_thread_size0.086 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch56
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-687-6293
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 102-4B2 · 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
SURFACE TREATMENT: CADMIUM AND PHOSPHATE OVERALL
THREAD QUANTITY PER INCH: 56
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED
NOMINAL THREAD SIZE: 0.086 INCHES IN
NUT HEIGHT: 0.057 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
THREAD CLASS: 2B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM AND PHOSPHATE OVERALL
THREAD QUANTITY PER INCH56
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.086 INCHES IN
NUT HEIGHT0.057 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
THREAD CLASS2B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
WIDTH ACROSS FLATS0.180 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
FFN836GPCTYPE2STYLE1Interchangeable
interchangeable cross-reference
interchangeable
118554Interchangeable
interchangeable cross-reference
interchangeable
134560Interchangeable
interchangeable cross-reference
interchangeable
X2845Interchangeable
interchangeable cross-reference
interchangeable
134570Interchangeable
interchangeable cross-reference
interchangeable
20501-69Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 102-4B2?
102-4B2 is a NUT,PLAIN,HEXAGON.
What parts can replace 102-4B2?
There are 18 known substitutes for 102-4B2: FFN836GPCTYPE2STYLE1, 118554, 134560 and 15 more. Substitute compatibility should be verified for your specific system.
Is 102-4B2 still available?
102-4B2 is currently cancelled.
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