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Technical Data Sheet
PartsTable / COMPONENT / 42X4
42X4 ✓ 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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: COPPER ALLOY OVERALL, seat_angle: 45.0 DEGREES ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS, style_designator: FLARED W/ CENTER WRENCHING FACILITY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-010-3496, 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
42X4
NSN: 5315-00-010-3496
FSC: 5315
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle45.0 DEGREES ALL ENDS
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.438 INCHES ALL ENDS IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.170 INCHES IN
end_item_identificationGRUMMAN A-10 ACFT
thread_series_designatorUNF ALL ENDS
nondefinitive_spec/std_data1B FIGURE
NSN5315-00-010-3496
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42X4 · 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
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.156 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.1094 INCHES NOMINAL IN
•
HEIGHT: 0.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
•
UNDER HEAD LENGTH: 1.094 INCHES NOMINAL IN
•
DIAMETER: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
PIN HEAD DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1111 OVERALL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.156 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.1094 INCHES NOMINAL IN
HEIGHT0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
UNDER HEAD LENGTH1.094 INCHES NOMINAL IN
DIAMETER0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
PIN HEAD DIAMETER0.500 INCHES NOMINAL IN
MATERIALSTEEL COMP 1010 OR STEEL COMP 1111 OVERALL
HEAD STYLEFLAT
CHAMFER LENGTH0.078 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
G12403000Interchangeable
interchangeable cross-reference
interchangeable
810726Interchangeable
interchangeable cross-reference
interchangeable
C7Interchangeable
interchangeable cross-reference
interchangeable
TMI303BInterchangeable
interchangeable cross-reference
interchangeable
25623-3Interchangeable
interchangeable cross-reference
interchangeable
530-521Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42X4?
42X4 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace 42X4?
There are 31 known substitutes for 42X4: G12403000, 810726, C7 and 28 more. Substitute compatibility should be verified for your specific system.
Is 42X4 still available?
42X4 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