LH12300-5 — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

LH12300-5: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 0.400 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-143-1767, 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

LH12300-5

NSN: 5310-01-143-1767
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	DOUBLE HEXAGON
nut_height	0.400 INCHES NOMINAL IN
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
surface_treatment	SILVER THREADS
width_across_flats	0.438 INCHES NOMINAL IN
nominal_thread_size	0.313 INCHES IN
bearing_surface_type	FLAT
counterbore_diameter	0.340 INCHES NOMINAL FIRST END IN
NSN	5310-01-143-1767

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

NUT COUNTERBORE DEPTH: 0.060 INCHES NOMINAL FIRST END IN

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.313 INCHES IN

•

COUNTERBORE DIAMETER: 0.340 INCHES NOMINAL FIRST END IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.438 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
NUT COUNTERBORE DEPTH	0.060 INCHES NOMINAL FIRST END IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.313 INCHES IN
COUNTERBORE DIAMETER	0.340 INCHES NOMINAL FIRST END IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.400 INCHES NOMINAL IN
SURFACE TREATMENT	SILVER THREADS

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

10109790Reference document

Same NSN cross-reference

Reference document — Informative reference only

4061T20P08Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

4061T20Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is LH12300-5?

LH12300-5 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.

What parts can replace LH12300-5?

There are 3 known substitutes for LH12300-5: 10109790, 4061T20P08, 4061T20. Substitute compatibility should be verified for your specific system.

What is the NSN for LH12300-5?

LH12300-5 is cataloged in the U.S. Government catalog under NSN 5310-01-143-1767. This indicates validated use in U.S. government and defense supply chains.

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LH12300-5 — NUT,SELF-LOCKING,DOUBLE HEXAGON

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