PartsTable
Technical Data Sheet
79NM632 ✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.178 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-163-8256, 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
79NM632
NSN: 5310-01-163-8256
FSC: 5310
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height0.178 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentZINC NUT
width_across_flats0.308 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch32
NSN5310-01-163-8256
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 79NM632 · 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: ZINC NUT
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
NOMINAL THREAD SIZE: 0.138 INCHES IN
THREAD QUANTITY PER INCH: 32
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPE: CHAMFERED
MATERIAL: PLASTIC LOCKING INSERT
NUT HEIGHT: 0.178 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC NUT
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED
MATERIALPLASTIC LOCKING INSERT
NUT HEIGHT0.178 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
P722626-501Interchangeable
interchangeable cross-reference
interchangeable
M439520SUB1PT1Interchangeable
interchangeable cross-reference
interchangeable
P12964Interchangeable
interchangeable cross-reference
interchangeable
62222Interchangeable
interchangeable cross-reference
interchangeable
50065AInterchangeable
interchangeable cross-reference
interchangeable
50065Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 79NM632?
79NM632 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 79NM632?
There are 14 known substitutes for 79NM632: P722626-501, M439520SUB1PT1, P12964 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 79NM632?
79NM632 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-163-8256. This indicates validated use in U.S. government and defense supply chains.
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