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Technical Data Sheet
343525 ✓ 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 BREATHER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shank_length: 0.375 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 0.281 INCHES NOMINAL IN, overall_length: 0.993 INCHES NOMINAL IN, shank_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-717-2926, 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
343525
NSN: 5315-00-717-2926
FSC: 5315
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length0.375 INCHES NOMINAL IN
thread_class2A A
thread_length0.281 INCHES NOMINAL IN
overall_length0.993 INCHES NOMINAL IN
shank_diameter0.312 INCHES NOMINAL IN
first_end_styleCHAMFERED
second_end_styleSQUARE
special_featuresTWO 0.062 IN. DIA. HOLES DRILLED THRU SHOULDER IN
style_designatorSHOULDER
thread_directionRIGHT-HAND
first_end_locationCHAMFERED END
NSN5315-00-717-2926
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 343525 · 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
SHOULDER WIDTH ACROSS FLATS: 0.373 INCHES NOMINAL IN
NOMINAL THREAD SIZE: 0.312 INCHES IN
SECOND END STYLE: SQUARE
SECOND SHANK LENGTH: 0.375 INCHES NOMINAL IN
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: SHOULDER
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
SHOULDER WIDTH ACROSS FLATS0.373 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.312 INCHES IN
SECOND END STYLESQUARE
SPECIAL FEATURESTWO 0.062 IN. DIA. HOLES DRILLED THRU SHOULDER IN
SECOND SHANK LENGTH0.375 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSHOULDER
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SECOND SHANK DIAMETER0.305 INCHES NOMINAL IN
OVERALL LENGTH0.993 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
15-43Interchangeable
interchangeable cross-reference
interchangeable
116878Interchangeable
interchangeable cross-reference
interchangeable
343525Interchangeable
interchangeable cross-reference
interchangeable
D155C13R5G03Interchangeable
interchangeable cross-reference
interchangeable
1504-335646Interchangeable
interchangeable cross-reference
interchangeable
CD15CD13R5G0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 343525?
343525 is a BREATHER.
What parts can replace 343525?
There are 7 known substitutes for 343525: 15-43, 116878, 343525 and 4 more. Substitute compatibility should be verified for your specific system.
Is 343525 still available?
343525 is currently cancelled.
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