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Technical Data Sheet
PartsTable / MRO / 5-57
5-57 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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,VARIABLE,CERAMIC DIELE. Key specifications include length: 12.040 FEET MINIMUM AND 12.368 FEET MAXIMUM FT, material: COPPER ALLOY OR COPPER TANK FIRST TANK LEFT SIDE, nut_style: HEXAGON, thickness: 0.625 INCHES NOMINAL IN, unit_type: TELESCOPING, body_style: ANGLE, SHAPE, INTERNAL COUPLING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-012-0370, 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
MRO→ MRO_GENERAL→ 5-57
NSN: 5310-00-012-0370
FSC: 5310
CAGE: 32195 — OUTBOARD MARINE CORP JOHNSON MOTORS DIV (USA)
SPECIFICATIONS
length12.040 FEET MINIMUM AND 12.368 FEET MAXIMUM FT
materialCOPPER ALLOY OR COPPER TANK FIRST TANK LEFT SIDE
nut_styleHEXAGON
thickness0.625 INCHES NOMINAL IN
unit_typeTELESCOPING
body_styleANGLE, SHAPE, INTERNAL COUPLING
body_width0.918 INCHES NOMINAL IN
core_width21.750 INCHES NOMINAL IN
head_styleHEXAGON
nut_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
body_height0.250 INCHES NOMINAL IN
body_length1.168 INCHES NOMINAL IN
NSN5310-00-012-0370
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5-57 · 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
•
NUT STYLE: HEXAGON
•
NUT HEIGHT: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
THREAD QUANTITY PER INCH: 20
•
THREAD SERIES: UNF
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
WIDTH ACROSS FLATS: 0.6120 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR ZINC 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)
NUT STYLEHEXAGON
NUT HEIGHT0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.438 INCHES IN
THREAD QUANTITY PER INCH20
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
WIDTH ACROSS FLATS0.6120 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIALSTEEL OVERALL
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
103027Interchangeable
interchangeable cross-reference
interchangeable
16558JInterchangeable
interchangeable cross-reference
interchangeable
24074Interchangeable
interchangeable cross-reference
interchangeable
1340Interchangeable
interchangeable cross-reference
interchangeable
MS15444-86Interchangeable
interchangeable cross-reference
interchangeable
407Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5-57?
5-57 is a CAPACITOR,VARIABLE,CERAMIC DIELE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 5-57?
There are 17 known substitutes for 5-57: 103027, 16558J, 24074 and 14 more. Substitute compatibility should be verified for your specific system.
Is 5-57 still available?
5-57 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