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G18421L2-6 — NUT,SELF-LOCKING,GANG CHANNEL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

G18421L2-6: NUT,SELF-LOCKING,GANG CHANNEL.

The NUT,SELF-LOCKING,GANG CHANNEL is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: GANG CHANNEL, SELF LOCKING, base_width: 0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN, nut_height: 0.370 INCHES MAXIMUM IN, nut_length: 0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-156-6426, 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
G18421L2-6
NSN: 5310-01-156-6426
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleGANG CHANNEL, SELF LOCKING
base_width0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
nut_height0.370 INCHES MAXIMUM IN
nut_length0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
base_thickness0.070 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
features_providedFLOATING NUT
NSN5310-01-156-6426
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: G18421L2-6 · 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
•
LUBRICATION: DRY FILM LUBRICANT
•
NUT LENGTH: 0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.100 INCHES MINIMUM BASE IN
•
FEATURES PROVIDED: FLOATING NUT
•
BASE WIDTH: 0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
LUBRICATIONDRY FILM LUBRICANT
NUT LENGTH0.780 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.100 INCHES MINIMUM BASE IN
FEATURES PROVIDEDFLOATING NUT
BASE WIDTH0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
SPECIFICATION/STANDARD DATA76301-ST3-445 MANUFACTURERS STANDARD
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 3
10109854Reference document
Same NSN cross-reference
Reference document — Informative reference only
ST3M445C6M2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
F49249E6-2XNSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is G18421L2-6?
G18421L2-6 is a NUT,SELF-LOCKING,GANG CHANNEL.
What parts can replace G18421L2-6?
There are 3 known substitutes for G18421L2-6: 10109854, ST3M445C6M2, F49249E6-2XN. Substitute compatibility should be verified for your specific system.
What is the NSN for G18421L2-6?
G18421L2-6 is cataloged in the U.S. Government catalog under NSN 5310-01-156-6426. This indicates validated use in U.S. government and defense supply chains.
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