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B18.16.6 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B18.16.6: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.825 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, surface_treatment: ZINC OVERALL, width_across_flats: 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-649-9628, 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
B18.16.6
NSN: 5310-01-649-9628
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height0.825 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
width_across_flats1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
hole_configuration_styleCONFIGURATION A
part_name_assigned_by_controlling_agencySTYLE NE NYLON INSERT LOCKNUT
NSN5310-01-649-9628
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B18.16.6 · 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
•
WIDTH ACROSS FLATS: 1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: CONFIGURATION A
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 0.825 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.427 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLECONFIGURATION A
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.825 INCHES NOMINAL IN
SPECIAL FEATURESMAXIUM RUNOUT OF BEARING SURFACE WITH THREAD P.D. FIM 0.022 INCHES; FINISH - FE/ZN 3AN PER ASTM F194/F194/M; ROHS EUROPEAN UNION DIRECTIVE; CONFIGURATION STYLE ARE NE, GRADE 5; THICKNESS - MAX 1.078; MIN 1.010; MINIMUM HEX HEIGHT 0.825; NOMINAL DIAMETER 1.0000; SIZE - 1 IN
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYSTYLE NE NYLON INSERT LOCKNUT
NUT STYLEHEXAGON
MATERIALSTEEL NUT
SUBSTITUTES & CROSS-REFERENCES 3
NNZSC525-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
41994Reference document
Same NSN cross-reference
Reference document — Secondary reference
NNG5ZC100Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B18.16.6?
B18.16.6 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace B18.16.6?
There are 3 known substitutes for B18.16.6: NNZSC525-01, 41994, NNG5ZC100. Substitute compatibility should be verified for your specific system.
What is the NSN for B18.16.6?
B18.16.6 is cataloged in the U.S. Government catalog under NSN 5310-01-649-9628. This indicates validated use in U.S. government and defense supply chains.
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