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Technical Data Sheet
401859 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The TUBE,INLET is a the manufacturer industrial component. Key specifications include nut_style: SLOTTED, HEXAGON, nut_height: 0.438 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNEF, thread_direction: RIGHT-HAND, width_across_flats: 1.500 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-529-4103, 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
401859
NSN: 5310-00-529-4103
FSC: 5310
CAGE: 62265 — VOLVO TRUCKS NORTH AMERICA, INC. DBA (FOREIGN PARENT IS VOLVO LASTVAGNAR AB, GOTEBORG, SWEDEN.) (USA)
SPECIFICATIONS
materialSTEEL COMP 1040 OR STEEL COMP 1541 OR STEEL COMP 1042 OR STEEL COMP 1043 OR STEEL COMP 1045 OR STEEL COMP 1046 OR STEEL COMP 1049 OR STEEL COMP 1050 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.438 INCHES NOMINAL IN
thread_class3B
thread_seriesUNEF
thread_directionRIGHT-HAND
width_across_flats1.500 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch20
NSN5310-00-529-4103
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 401859 · 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
THREAD CLASS: 3B
NOMINAL THREAD SIZE: 1.000 INCHES IN
THREAD QUANTITY PER INCH: 20
THREAD SERIES: UNEF
BEARING SURFACE TYPE: WASHER FACED
THREAD DIRECTION: RIGHT-HAND
WIDTH ACROSS FLATS: 1.500 INCHES NOMINAL IN
NUT HEIGHT: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
NOMINAL THREAD SIZE1.000 INCHES IN
THREAD QUANTITY PER INCH20
THREAD SERIESUNEF
BEARING SURFACE TYPEWASHER FACED
THREAD DIRECTIONRIGHT-HAND
WIDTH ACROSS FLATS1.500 INCHES NOMINAL IN
NUT HEIGHT0.438 INCHES NOMINAL IN
NUT STYLESLOTTED, HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-633-CANCELED FED SPEC 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A576 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A576 ASSN STD 4TH MATERIAL RESPONSE OR ASTM A576EASSN STD 6TH MATL RESPONCE ASTM A576 OR ASSN STD 7TH MATL RESPONSE ASTM A576 OR ASSN STD 8TH MATL RESPONSE ASTM A108 OR ASTM A576 ASSN STD 5TH MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
Z30Interchangeable
interchangeable cross-reference
interchangeable
HS14198Interchangeable
interchangeable cross-reference
interchangeable
4205Interchangeable
interchangeable cross-reference
interchangeable
AF43Interchangeable
interchangeable cross-reference
interchangeable
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
9432264Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 401859?
401859 is a TUBE,INLET.
What parts can replace 401859?
There are 22 known substitutes for 401859: Z30, HS14198, 4205 and 19 more. Substitute compatibility should be verified for your specific system.
Is 401859 still available?
401859 is currently cancelled.
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