PartsTable
Technical Data Sheet
1-8UNC-2B ✓ 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 OVERALL, nut_style: HEXAGON, nut_height: 1.010 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-519-6628, 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
1-8UNC-2B
NSN: 5310-00-519-6628
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height1.010 INCHES MINIMUM AND 1.141 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch8
NSN5310-00-519-6628
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-8UNC-2B · 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 NUT
NUT STYLE: HEXAGON
COUNTERSINK ANGLE: 88.0 DEGREES NOMINAL NUT
NOMINAL THREAD SIZE: 1.000 INCHES IN
THREAD DIRECTION: RIGHT-HAND
WIDTH ACROSS FLATS: 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
THREAD CLASS: 3B
THREAD QUANTITY PER INCH: 8
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM NUT
NUT STYLEHEXAGON
COUNTERSINK ANGLE88.0 DEGREES NOMINAL NUT
NOMINAL THREAD SIZE1.000 INCHES IN
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
THREAD CLASS3B
THREAD QUANTITY PER INCH8
BEARING SURFACE FINISH125.0 MICROINCHES
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
MS17829-16CL1Interchangeable
interchangeable cross-reference
interchangeable
298365ITEM22Interchangeable
interchangeable cross-reference
interchangeable
298365ITEM22L1Interchangeable
interchangeable cross-reference
interchangeable
1-8UNC-2BInterchangeable
interchangeable cross-reference
interchangeable
1.00008UNC2BT1G5NSBAMInterchangeable
interchangeable cross-reference
interchangeable
MIL-S-1222G TY1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-8UNC-2B?
1-8UNC-2B is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 1-8UNC-2B?
There are 16 known substitutes for 1-8UNC-2B: MS17829-16CL1, 298365ITEM22, 298365ITEM22L1 and 13 more. Substitute compatibility should be verified for your specific system.
Is 1-8UNC-2B still available?
1-8UNC-2B is currently cancelled.
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