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Technical Data Sheet
PY91-250 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MUFFLER,EXHAUST is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, body_shape: ROUND, design_type: DRY, coolant_type: AIR, inlet_location: CENTRALLY IN END SECTION OF BODY, muffler_design: STRAIGHT THROUGH. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-00-341-4052, 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
PY91-250
NSN: 2990-00-341-4052
FSC: 2990
CAGE: 14351 — TELEDYNE CONTINENTAL MOTORS INDUSTRIAL PRODUCTS DIV TELEDYNE INDUSTRIES INC SUB OF TELEDYNE INC (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
body_shapeROUND
design_typeDRY
coolant_typeAIR
inlet_locationCENTRALLY IN END SECTION OF BODY
muffler_designSTRAIGHT THROUGH
overall_length9.750 INCHES NOMINAL IN
outlet_locationCENTRALLY IN END SECTION OF BODY
overall_diameter3.500 INCHES NOMINAL IN
inlet_thread_size1-1/2-11-1/2 SINGLE INLET
operating_positionUNIVERSAL
outlet_thread_size1-1/2-11-1/2 FIRST OUTLET
NSN2990-00-341-4052
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MUFFLER,EXHAUST TITLE COMPONENT PN PY91-250 MFR MUFFLER,EXHAUST
KEY FEATURES
OUTLET THREAD DIRECTION: RIGHT-HAND FIRST OUTLET
COOLANT TYPE: AIR
FSC APPLICATION DATA: GASOLINE ENGINE,NONAIRCRAFT
INLET LOCATION: CENTRALLY IN END SECTION OF BODY
OUTLET THREAD SIZE: 1-1/2-11-1/2 FIRST OUTLET
OPERATING POSITION: UNIVERSAL
INLET CONNECTION TYPE: THREADED SINGLE INLET
TECHNICAL CHARACTERISTICS (FLIS)
OUTLET THREAD DIRECTIONRIGHT-HAND FIRST OUTLET
COOLANT TYPEAIR
FSC APPLICATION DATAGASOLINE ENGINE,NONAIRCRAFT
INLET LOCATIONCENTRALLY IN END SECTION OF BODY
OUTLET THREAD SIZE1-1/2-11-1/2 FIRST OUTLET
OPERATING POSITIONUNIVERSAL
INLET CONNECTION TYPETHREADED SINGLE INLET
OVERALL LENGTH9.750 INCHES NOMINAL IN
DESIGN TYPEDRY
BODY SHAPEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
6044Interchangeable
interchangeable cross-reference
interchangeable
4X787Interchangeable
interchangeable cross-reference
interchangeable
5499Interchangeable
interchangeable cross-reference
interchangeable
699Interchangeable
interchangeable cross-reference
interchangeable
21210DInterchangeable
interchangeable cross-reference
interchangeable
CT57-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PY91-250?
PY91-250 is a MUFFLER,EXHAUST.
What parts can replace PY91-250?
There are 18 known substitutes for PY91-250: 6044, 4X787, 5499 and 15 more. Substitute compatibility should be verified for your specific system.
Is PY91-250 still available?
PY91-250 is currently cancelled.
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