PartsTable
Technical Data Sheet
563-8841917-187 ✓ 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: 1.300 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: SELF-LOCKING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-734-0250, 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
563-8841917-187
NSN: 5310-01-734-0250
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height1.300 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featureSELF-LOCKING
thread_directionRIGHT-HAND
surface_treatmentZINC NUT
width_across_flats1.801 INCHES MINIMUM AND 1.814 INCHES MAXIMUM IN
nominal_thread_size1.2500 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch7
NSN5310-01-734-0250
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 563-8841917-187 · 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
NOMINAL THREAD SIZE: 1.2500 INCHES IN
SPECIFICATION/STANDARD DATA: 80205-NAS-17829 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIAL: STEEL NUT
NUT HEIGHT: 1.300 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: C1137 PER AIR4127 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR CARBON OR ALLOY STEEL PER MIL-DTL- MIL SPEC SINGLE MATERIAL RESPONSE NUT
THREAD CLASS: 3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,FE/ZN 8,TYPE II NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE NUT
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE1.2500 INCHES IN
SPECIFICATION/STANDARD DATA80205-NAS-17829 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALSTEEL NUT
NUT HEIGHT1.300 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONC1137 PER AIR4127 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR CARBON OR ALLOY STEEL PER MIL-DTL- MIL SPEC SINGLE MATERIAL RESPONSE NUT
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT,SELF-LOCKING,HEXAGON,REGULAR HEIGHT,250 DEG F,NON-METALLIC INSERT,NON-CRES STEEL DEGF
THREAD CLASS3B
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,FE/ZN 8,TYPE II NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE NUT
BEARING SURFACE TYPECHAMFERED
WIDTH ACROSS FLATS1.801 INCHES MINIMUM AND 1.814 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
MS17829-6CMODInterchangeable
interchangeable cross-reference
interchangeable
MS17829-6C(MOD/VESPEL INSERT)Interchangeable
interchangeable cross-reference
interchangeable
NASM17829Interchangeable
interchangeable cross-reference
interchangeable
MS17829Z4CInterchangeable
interchangeable cross-reference
interchangeable
MS17829Z20CInterchangeable
interchangeable cross-reference
interchangeable
180-7069123-31Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 563-8841917-187?
563-8841917-187 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 563-8841917-187?
There are 10 known substitutes for 563-8841917-187: MS17829-6CMOD, MS17829-6C(MOD/VESPEL INSERT), NASM17829 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 563-8841917-187?
563-8841917-187 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-734-0250. This indicates validated use in U.S. government and defense supply chains.
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