PartsTable
Technical Data Sheet
124-7121005 PC 48 ✓ 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: 0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-479-0286, 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
124-7121005 PC 48
NSN: 5310-01-479-0286
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_across_flats1.088 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch10
surface_treatment_document_and_classificationQQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-479-0286
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 124-7121005 PC 48 · 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
THREAD DIRECTION: RIGHT-HAND
THREAD CLASS: 2B
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE: 0.750 INCHES IN
THREAD QUANTITY PER INCH: 10
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD QUANTITY PER INCH10
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
MATERIALSTEEL OVERALL
NUT HEIGHT0.398 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
4322650Interchangeable
interchangeable cross-reference
interchangeable
124-4322650 PC 72Interchangeable
interchangeable cross-reference
interchangeable
124-7121006 PC70Interchangeable
interchangeable cross-reference
interchangeable
88-22790Interchangeable
interchangeable cross-reference
interchangeable
124-7121006 PC 13Interchangeable
interchangeable cross-reference
interchangeable
124-4322650 PC 35Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 124-7121005 PC 48?
124-7121005 PC 48 is a NUT,PLAIN,HEXAGON.
What parts can replace 124-7121005 PC 48?
There are 14 known substitutes for 124-7121005 PC 48: 4322650, 124-4322650 PC 72, 124-7121006 PC70 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 124-7121005 PC 48?
124-7121005 PC 48 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-479-0286. This indicates validated use in U.S. government and defense supply chains.
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