PartsTable
Technical Data Sheet
20474-43 ✓ 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 NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.054 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.199 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-420-0551, 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
20474-43
NSN: 5310-00-420-0551
FSC: 5310
CAGE: 15022 — ASI AEROSPACE GROUP, INC. DBA BARCO AVIATION (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.054 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.199 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
nondefinitive_spec/std_dataI TYPE AND 1 STYLE
NSN5310-00-420-0551
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20474-43 · 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
MATERIAL: STEEL COMP 303 OVERALL
NONDEFINITIVE SPEC/STD DATA: I TYPE AND 1 STYLE
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
THREAD CLASS: 2B
NUT STYLE: CLINCH
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 303 OVERALL
NONDEFINITIVE SPEC/STD DATAI TYPE AND 1 STYLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B
NUT STYLECLINCH
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
NOMINAL THREAD SIZE0.112 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
5108Interchangeable
interchangeable cross-reference
interchangeable
0900807Interchangeable
interchangeable cross-reference
interchangeable
103386Interchangeable
interchangeable cross-reference
interchangeable
NCN6-1-3Interchangeable
interchangeable cross-reference
interchangeable
MS3214-7Interchangeable
interchangeable cross-reference
interchangeable
8908409Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20474-43?
20474-43 is a NUT,PLAIN,CLINCH.
What parts can replace 20474-43?
There are 35 known substitutes for 20474-43: 5108, 0900807, 103386 and 32 more. Substitute compatibility should be verified for your specific system.
Is 20474-43 still available?
20474-43 is currently cancelled.
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