PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1918-04
1918-04 ✓ 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

SHAFT,TURBINE,NONAIRCRAFT GAS TU. Key specifications include material: STEEL SHAFT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-515-8708, 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
1918-04
NSN: 5310-00-515-8708
FSC: 5310
CAGE: 78189 — ITW SHAKEPROOF AUTOMOTIVE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL SHAFT
NSN5310-00-515-8708
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1918-04 · 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: 0.016 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.314 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.016 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
HOLE DIAMETER0.314 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
681212R11Interchangeable
interchangeable cross-reference
interchangeable
MH754Interchangeable
interchangeable cross-reference
interchangeable
3898549Interchangeable
interchangeable cross-reference
interchangeable
20-587Interchangeable
interchangeable cross-reference
interchangeable
11-775-001075Interchangeable
interchangeable cross-reference
interchangeable
VB8-3DV2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1918-04?
1918-04 is a SHAFT,TURBINE,NONAIRCRAFT GAS TU.
What parts can replace 1918-04?
There are 11 known substitutes for 1918-04: 681212R11, MH754, 3898549 and 8 more. Substitute compatibility should be verified for your specific system.
Is 1918-04 still available?
1918-04 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