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A11169 ✓ 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 COMP 1010 OVERALL, hole_diameter: 1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN, outside_diameter: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.058 INCHES NOMINAL IN, external_prebent_key_width: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-2559, 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
A11169
NSN: 5310-00-209-2559
FSC: 5310
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
hole_diameter1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
outside_diameter1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.058 INCHES NOMINAL IN
external_key_quantity6
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_length0.125 INCHES NOMINAL IN
overall_distance_including_keys1.896 INCHES MINIMUM AND 1.916 INCHES MAXIMUM IN
angle_between_first_and_second_key30.0 DEGREES NOMINAL
material_document_and_classificationAMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-209-2559
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A11169 · 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
•
HOLE DIAMETER: 1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1010 OVERALL
•
ANGLE BETWEEN FIRST AND SECOND KEY: 30.0 DEGREES NOMINAL
•
MATERIAL THICKNESS: 0.058 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
EXTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER1.396 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1010 OVERALL
ANGLE BETWEEN FIRST AND SECOND KEY30.0 DEGREES NOMINAL
MATERIAL THICKNESS0.058 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS ASSN STD SINGLE MATERIAL RESPONSE OVERALL
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
INTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY6
STYLE DESIGNATORKEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
T-245-MInterchangeable
interchangeable cross-reference
interchangeable
TPS2-8-1BInterchangeable
interchangeable cross-reference
interchangeable
9157088-2Interchangeable
interchangeable cross-reference
interchangeable
S637471Interchangeable
interchangeable cross-reference
interchangeable
140316Interchangeable
interchangeable cross-reference
interchangeable
DS2709Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A11169?
A11169 is a WASHER,KEY.
What parts can replace A11169?
There are 15 known substitutes for A11169: T-245-M, TPS2-8-1B, 9157088-2 and 12 more. Substitute compatibility should be verified for your specific system.
Is A11169 still available?
A11169 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