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PartsTable / COMPONENT / 1155F20 PIECE 105
1155F20 PIECE 105 ✓ 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

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN, heat_treatment: ANNEALED, outside_diameter: 1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.050 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-105-9389, 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
1155F20 PIECE 105
NSN: 5310-01-105-9389
FSC: 5310
CAGE: 94259 — FLUOR MARINE PROPULSION, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
heat_treatmentANNEALED
outside_diameter1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.050 INCHES NOMINAL IN
external_key_quantity15
special_test_featuresSPECIAL QUALITY CONTROL TESTING
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
internal_prebent_key_length0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
criticality_code_justificationZZZY
NSN5310-01-105-9389
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1155F20 PIECE 105 · 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
•
INTERNAL PREBENT KEY WIDTH: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY LENGTH: 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
TEST DATA DOCUMENT: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
STYLE DESIGNATOR: KEY
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
•
SPECIAL TEST FEATURES: SPECIAL QUALITY CONTROL TESTING
•
OUTSIDE DIAMETER: 1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL PREBENT KEY WIDTH0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
INTERNAL PREBENT KEY LENGTH0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
TEST DATA DOCUMENT81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
STYLE DESIGNATORKEY
MATERIALSTEEL CORROSION RESISTING OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
OUTSIDE DIAMETER1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY15
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
W07Interchangeable
interchangeable cross-reference
interchangeable
3225795Interchangeable
interchangeable cross-reference
interchangeable
12614PC633Interchangeable
interchangeable cross-reference
interchangeable
0369-8Interchangeable
interchangeable cross-reference
interchangeable
MILW21338Interchangeable
interchangeable cross-reference
interchangeable
12Z10002-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1155F20 PIECE 105?
1155F20 PIECE 105 is a WASHER,KEY.
What parts can replace 1155F20 PIECE 105?
There are 14 known substitutes for 1155F20 PIECE 105: W07, 3225795, 12614PC633 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1155F20 PIECE 105?
1155F20 PIECE 105 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-105-9389. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026