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LH8540-048K — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

LH8540-048K: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, temp_rating: 900.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.205 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-017-6186, 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
LH8540-048K
NSN: 5310-00-017-6186
NIINs: 000176186, 010912043
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
temp_rating900.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.205 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
washer_thickness0.023 INCHES MINIMUM IN
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
NSN5310-00-017-6186
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: LH8540-048K · 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
•
WASHER OUTSIDE DIAMETER: 0.420 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
PRECIOUS MATERIAL: SILVER
•
TEMP RATING: 900.0 FAHRENHEIT NOMINAL DEGF
•
WASHER THICKNESS: 0.023 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.205 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER0.420 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIALSILVER
TEMP RATING900.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS0.023 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 3
H29547-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
525-617-9004Reference document
Same NSN cross-reference
Reference document — Secondary reference
BH00209-4Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 LH8540-048K?
LH8540-048K is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace LH8540-048K?
There are 3 known substitutes for LH8540-048K: H29547-4, 525-617-9004, BH00209-4. Substitute compatibility should be verified for your specific system.
What is the NSN for LH8540-048K?
LH8540-048K is cataloged in the U.S. Government catalog under NSN 5310-00-017-6186. This indicates validated use in U.S. government and defense supply chains.
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