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PartsTable / COMPONENT / BA98203-52
BA98203-52 ✓ 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 PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 410 OVERALL, overall_length: 0.625 INCHES NOMINAL IN, surface_finish: 80.0 MICROINCHES GRIP, hardness_rating: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL, style_designator: SLOTTED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-754-1844, 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
BA98203-52
NSN: 5315-00-754-1844
FSC: 5315
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 410 OVERALL
overall_length0.625 INCHES NOMINAL IN
surface_finish80.0 MICROINCHES GRIP
hardness_rating83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPASSIVATE OVERALL
material_thickness0.028 INCHES NOMINAL IN
material_document_and_classificationAMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-754-1844
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BA98203-52 · 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 THICKNESS: 0.028 INCHES NOMINAL IN
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SLOTTED
•
HARDNESS RATING: 83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SURFACE FINISH: 80.0 MICROINCHES GRIP
•
MATERIAL: STEEL COMP 410 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.028 INCHES NOMINAL IN
DIAMETER0.125 INCHES NOMINAL IN
STYLE DESIGNATORSLOTTED
HARDNESS RATING83.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 87.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
OVERALL LENGTH0.625 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE FINISH80.0 MICROINCHES GRIP
MATERIALSTEEL COMP 410 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5506 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
14184Interchangeable
interchangeable cross-reference
interchangeable
A-A-431Interchangeable
interchangeable cross-reference
interchangeable
78-110Interchangeable
interchangeable cross-reference
interchangeable
BACB30AT8-4Interchangeable
interchangeable cross-reference
interchangeable
NAS1418-04Interchangeable
interchangeable cross-reference
interchangeable
SSP125-0625Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BA98203-52?
BA98203-52 is a PIN,SPRING.
What parts can replace BA98203-52?
There are 16 known substitutes for BA98203-52: 14184, A-A-431, 78-110 and 13 more. Substitute compatibility should be verified for your specific system.
Is BA98203-52 still available?
BA98203-52 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026