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66728 ✓ Verified by PartsTable
Clementoni · 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 HANDLE,STARTING ROPE is a Clementoni industrial component. Key specifications include throat_depth: 3.250 INCHES NOMINAL IN, special_features: SLIDING PIN SCREW; IRON FRAME, jaw_nominal_opening: 8.000 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-026-8506, 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
66728
NSN: 5310-00-026-8506
FSC: 5310
CAGE: 80254 — TEXTRON LYCOMING INC WILLIAMSPORT PLANT (USA)
SPECIFICATIONS
throat_depth3.250 INCHES NOMINAL IN
special_featuresSLIDING PIN SCREW; IRON FRAME
jaw_nominal_opening8.000 INCHES IN
NSN5310-00-026-8506
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 66728 · Clementoni ⚠ 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: STEEL COMP 1010 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5044 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THICKNESS: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1010 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5044 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THICKNESS0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
OVERALL DIAMETER1.240 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
667-28Interchangeable
interchangeable cross-reference
interchangeable
MS20667-28Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-781Interchangeable
interchangeable cross-reference
interchangeable
667628Interchangeable
interchangeable cross-reference
interchangeable
S-107-SInterchangeable
interchangeable cross-reference
interchangeable
GGG-G-17 TY8CL4STAInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66728?
66728 is a HANDLE,STARTING ROPE manufactured by Clementoni.
What parts can replace 66728?
There are 10 known substitutes for 66728: 667-28, MS20667-28, MIL-DTL-781 and 7 more. Substitute compatibility should be verified for your specific system.
Is 66728 still available?
66728 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