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12LHCFM1-6Z — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12LHCFM1-6Z: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: CLINCH, nut_height: 0.130 INCHES NOMINAL IN, nut_diameter: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN, pilot_length: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-078-2740, 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
12LHCFM1-6Z
NSN: 5310-01-078-2740
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleCLINCH
nut_height0.130 INCHES NOMINAL IN
nut_diameter0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
pilot_length0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNJC
pilot_diameter0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.138 INCHES IN
NSN5310-01-078-2740
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12LHCFM1-6Z · 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 DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNJC
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
•
PILOT DIAMETER: 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNJC
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
PILOT DIAMETER0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
PILOT LENGTH0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.130 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
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 1
122903-03Same 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 12LHCFM1-6Z?
12LHCFM1-6Z is a NUT,SELF-LOCKING,CLINCH.
What parts can replace 12LHCFM1-6Z?
There is 1 known substitute for 12LHCFM1-6Z: 122903-03. Substitute compatibility should be verified for your specific system.
What is the NSN for 12LHCFM1-6Z?
12LHCFM1-6Z is cataloged in the U.S. Government catalog under NSN 5310-01-078-2740. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.