PartsTable
Technical Data Sheet
388512 ✓ 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

SEAL,METALLIC,AIRCRAFT GAS TURBI. Key specifications include end_item_identification: ACFT ENG J-75. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-045-5206, 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
388512
NSN: 5310-00-045-5206
FSC: 5310
CAGE: 79577 — NORTH AND JUDD INC WILCOX-CRITTENDEN DIV (USA)
SPECIFICATIONS
end_item_identificationACFT ENG J-75
NSN5310-00-045-5206
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 388512 · 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
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
THICKNESS: 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
MATERIAL: COPPER ALLOY 11 OVERALL
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND E CLASS
SURFACE TREATMENT: OXIDE FILM OVERALL
HOLE DIAMETER: 0.183 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLE: ROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 11 OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND E CLASS
SURFACE TREATMENTOXIDE FILM OVERALL
HOLE DIAMETER0.183 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
388512Interchangeable
interchangeable cross-reference
interchangeable
355098Interchangeable
interchangeable cross-reference
interchangeable
374404Interchangeable
interchangeable cross-reference
interchangeable
2985Interchangeable
interchangeable cross-reference
interchangeable
299MPInterchangeable
interchangeable cross-reference
interchangeable
6540NCM071244Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 388512?
388512 is a SEAL,METALLIC,AIRCRAFT GAS TURBI.
What parts can replace 388512?
There are 15 known substitutes for 388512: 388512, 355098, 374404 and 12 more. Substitute compatibility should be verified for your specific system.
Is 388512 still available?
388512 is currently cancelled.
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