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388228 — BASE,MAGNETIC

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

388228: BASE,MAGNETIC.

The BASE,MAGNETIC is a the manufacturer industrial component. Key specifications include end_item_identification: 3930-01-223-8437, general_characteristics_item_description: W/6 MOUNTING HOLES; PART OF PUMP CONTACTOR ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-800-4127, 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
388228
NSN: 5310-00-800-4127
NIINs: 008004127, 013148855
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identification3930-01-223-8437
general_characteristics_item_descriptionW/6 MOUNTING HOLES; PART OF PUMP CONTACTOR ASSEMBLY
NSN5310-00-800-4127
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 388228 · 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
•
THREAD SERIES: UNF
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6049,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.190 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 1.375 INCHES IN
•
NUT DIAMETER: 1.917 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.098 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
CRITICALITY CODE JUSTIFICATIONFEAT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6049,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.190 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.375 INCHES IN
NUT DIAMETER1.917 INCHES NOMINAL IN
DRIVE POINT DEPTH0.098 INCHES NOMINAL IN
NUT THICKNESS0.280 INCHES NOMINAL IN
SPECIAL FEATURESHOLDS BEARING ON ROTATING SHAFT INSIDE THE GEARBOX OF A TF33 JET ENGINE; CRITICAL APPLICATION ESSENTIAL TO WEAPONS SYSTEM PERFORMANCE AND OPERATION
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 388228?
388228 is a BASE,MAGNETIC.
What is the NSN for 388228?
388228 is cataloged in the U.S. Government catalog under NSN 5310-00-800-4127. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.