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L6314143-003 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

L6314143-003: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 630 OVERALL, nut_length: 1.780 INCHES NOMINAL IN, nut_diameter: 1.750 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNJEF, special_features: SIX HOLES EQ.SPACED ON OUTER SURFACE OF NUT 0.156 IN.DIA. IN.

This part is cataloged in the U.S. Government catalog under NSN 5310-01-190-8071, 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
L6314143-003
NSN: 5310-01-190-8071
FSC: 5310 — Nuts and Washers
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
nut_length1.780 INCHES NOMINAL IN
nut_diameter1.750 INCHES NOMINAL IN
thread_class3B
thread_seriesUNJEF
special_featuresSIX HOLES EQ.SPACED ON OUTER SURFACE OF NUT 0.156 IN.DIA. IN
thread_directionRIGHT-HAND
nominal_thread_size1.4375 INCHES IN
hole_type_and_quantity2 TAPPED
boss_width_across_flats1.490 INCHES NOMINAL IN
hole_configuration_styleCONFIGURATION B
thread_quantity_per_inch20
NSN5310-01-190-8071
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: L6314143-003 · 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
•
NUT LENGTH: 1.780 INCHES NOMINAL IN
•
THREAD SERIES: UNJEF
•
HOLE CONFIGURATION STYLE: CONFIGURATION B
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.4375 INCHES IN
•
NUT DIAMETER: 1.750 INCHES NOMINAL IN
•
BOSS WIDTH ACROSS FLATS: 1.490 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NUT LENGTH1.780 INCHES NOMINAL IN
THREAD SERIESUNJEF
HOLE CONFIGURATION STYLECONFIGURATION B
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.4375 INCHES IN
NUT DIAMETER1.750 INCHES NOMINAL IN
BOSS WIDTH ACROSS FLATS1.490 INCHES NOMINAL IN
SPECIAL FEATURESSIX HOLES EQ.SPACED ON OUTER SURFACE OF NUT 0.156 IN.DIA. IN
THREAD CLASS3B
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

No substitute or cross-reference records for this part.

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 L6314143-003?
L6314143-003 is a NUT,SLEEVE.
What is the NSN for L6314143-003?
L6314143-003 is cataloged in the U.S. Government catalog under NSN 5310-01-190-8071. 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.