PartsTable
Technical Data Sheet
228189 ✓ 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 CONNECTING ROD,PISTON is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, orifice_shape: SLOTTED, overall_length: 4.250 INCHES NOMINAL IN, thread_location: EXTERNAL, orifice_diameter: 0.125 INCHES NOMINAL IN, special_features: DISPOSABLE,PLASTIC TYPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-685-7046, 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
228189
NSN: 5310-00-685-7046
FSC: 5310
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
shapeSTRAIGHT
orifice_shapeSLOTTED
overall_length4.250 INCHES NOMINAL IN
thread_locationEXTERNAL
orifice_diameter0.125 INCHES NOMINAL IN
special_featuresDISPOSABLE,PLASTIC TYPE
orifice_slot_length1.750 INCHES NOMINAL IN
nominal_thread_diameter0.500 INCHES IN
screw_thread_series_designatorNPT
tool_operation_type_for_which_designedNONPOWERED
NSN5310-00-685-7046
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 228189 · 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
THREAD DIRECTION: RIGHT-HAND
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT: 0.396 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5642 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
NOMINAL THREAD SIZE: 0.250 INCHES IN
THREAD SERIES: UNF
THREAD QUANTITY PER INCH: 28
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.396 INCHES MINIMUM AND 0.411 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5642 ASSN STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD SERIESUNF
THREAD QUANTITY PER INCH28
BEARING SURFACE TYPECHAMFERED
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
228684R91Interchangeable
interchangeable cross-reference
interchangeable
228189Interchangeable
interchangeable cross-reference
interchangeable
289187Interchangeable
interchangeable cross-reference
interchangeable
8630-G W/EXTInterchangeable
interchangeable cross-reference
interchangeable
5120PL1301391Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 228189?
228189 is a CONNECTING ROD,PISTON.
What parts can replace 228189?
There are 5 known substitutes for 228189: 228684R91, 228189, 289187 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 228189?
228189 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-685-7046. This indicates validated use in U.S. government and defense supply chains.
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