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79LH1660-40 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

79LH1660-40: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: HEXAGON, nut_height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-701-0773, 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
79LH1660-40
NSN: 5310-00-701-0773
NIINs: 007010773, 010798603
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleHEXAGON
nut_height0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats0.181 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch40
NSN5310-00-701-0773
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 79LH1660-40 · 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
•
FLANGE WIDTH ACROSS FLATS: 0.181 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
NUT LENGTH: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
FLANGE THICKNESS: 0.037 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
NUT DIAMETER: 0.128 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE WIDTH ACROSS FLATS0.181 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
NUT LENGTH0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
FLANGE THICKNESS0.037 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
NUT DIAMETER0.128 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEHEXAGONAL FLANGE
CROSS-SECTIONAL SHAPEROUND NUT
SUBSTITUTES & CROSS-REFERENCES 5
906056-03Reference document
Same NSN cross-reference
Reference document — Secondary reference
950136-24Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9112075Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
15520018-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
950136-0024Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 79LH1660-40?
79LH1660-40 is a NUT,SLEEVE.
What parts can replace 79LH1660-40?
There are 5 known substitutes for 79LH1660-40: 906056-03, 950136-24, 9112075 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 79LH1660-40?
79LH1660-40 is cataloged in the U.S. Government catalog under NSN 5310-00-701-0773. This indicates validated use in U.S. government and defense supply chains.
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