PartsTable
Technical Data Sheet
51566 ✓ 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 SHAFT ASSEMBLY,FLEXIBLE is a the manufacturer industrial component. Key specifications include end_type: ROUND KEYED FIRST END, material: RUBBER SYNTHETIC SEAL, nut_style: PLAIN, OCTAGON, end_radius: 0.375 INCHES NOMINAL IN, fork_depth: 1.000 INCHES NOMINAL IN, nut_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-0703, 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
51566
NSN: 5310-00-275-0703
FSC: 5310
CAGE: 23705 — FRUEHAUF CORP (USA)
SPECIFICATIONS
end_typeROUND KEYED FIRST END
materialRUBBER SYNTHETIC SEAL
nut_stylePLAIN, OCTAGON
end_radius0.375 INCHES NOMINAL IN
fork_depth1.000 INCHES NOMINAL IN
nut_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
tip_length0.125 INCHES NOMINAL SECOND END IN
design_typeNONREUSABLE
thread_class2B ROD CONNECTION
thread_depth0.266 INCHES NOMINAL FIRST END IN
body_diameter4.890 INCHES NOMINAL IN
core_diameter0.150 INCHES NOMINAL IN
NSN5310-00-275-0703
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 51566 · 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
NUT STYLE: PLAIN, OCTAGON
FEATURES PROVIDED: CASEHARDENED
HOLE CONFIGURATION STYLE: CONFIGURATION H
THREAD SERIES: UN
BEARING SURFACE TYPE: CHAMFERED
THREAD QUANTITY PER INCH: 16
NOMINAL THREAD SIZE: 2.625 INCHES IN
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEPLAIN, OCTAGON
FEATURES PROVIDEDCASEHARDENED
HOLE CONFIGURATION STYLECONFIGURATION H
THREAD SERIESUN
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH16
NOMINAL THREAD SIZE2.625 INCHES IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
HOLE TYPE AND QUANTITY1 DRILLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
51566Interchangeable
interchangeable cross-reference
interchangeable
65600-192Interchangeable
interchangeable cross-reference
interchangeable
70550-192Interchangeable
interchangeable cross-reference
interchangeable
79932-1Interchangeable
interchangeable cross-reference
interchangeable
031-1Interchangeable
interchangeable cross-reference
interchangeable
611982Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51566?
51566 is a SHAFT ASSEMBLY,FLEXIBLE.
What parts can replace 51566?
There are 15 known substitutes for 51566: 51566, 65600-192, 70550-192 and 12 more. Substitute compatibility should be verified for your specific system.
Is 51566 still available?
51566 is currently cancelled.
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