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Technical Data Sheet
PartsTable / COMPONENT / 35-17543Z
35-17543Z ✓ 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 OVERALL, hole_diameter: 1.313 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN, hardness_rating: 58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM, outside_diameter: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN, special_features: MACHINED 200 MICRO IN. ON INSIDE DIA AND 5 MICRO IN.

ON WASHER FACE, style_designator: KEY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-638-8007, 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
35-17543Z
NSN: 5310-00-638-8007
FSC: 5310
CAGE: 93835 — PARKER HANNIFIN CORPORATION DIV HYDRAULIC SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.313 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
hardness_rating58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM
outside_diameter1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
special_featuresMACHINED 200 MICRO IN. ON INSIDE DIA AND 5 MICRO IN. ON WASHER FACE
style_designatorKEY
surface_treatmentOXIDE FILM OVERALL
material_thickness0.059 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
internal_key_quantity2
internal_straight_key_width0.182 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_top_of_internal_key0.530 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN
NSN5310-00-638-8007
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 35-17543Z · 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 STRAIGHT KEY WIDTH: 0.182 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
HOLE DIAMETER: 1.313 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.059 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
INTERNAL KEY QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL STRAIGHT KEY WIDTH0.182 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE FILM OVERALL
HOLE DIAMETER1.313 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
MATERIAL THICKNESS0.059 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
INTERNAL KEY QUANTITY2
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORKEY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
SC-C-69491Interchangeable
interchangeable cross-reference
interchangeable
50-014Interchangeable
interchangeable cross-reference
interchangeable
57945600-01Interchangeable
interchangeable cross-reference
interchangeable
5001-04NInterchangeable
interchangeable cross-reference
interchangeable
05001-04NInterchangeable
interchangeable cross-reference
interchangeable
10321064Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 35-17543Z?
35-17543Z is a WASHER,KEY.
What parts can replace 35-17543Z?
There are 13 known substitutes for 35-17543Z: SC-C-69491, 50-014, 57945600-01 and 10 more. Substitute compatibility should be verified for your specific system.
Is 35-17543Z still available?
35-17543Z 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