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Technical Data Sheet
8891-4 ✓ 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 OUTLET ASSEMBLY,ELBOW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.016 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-139-5334, 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
8891-4
NSN: 5975-00-139-5334
FSC: 5975
CAGE: 59501 — UNISON INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle90.0 DEGREES
leg_length1.016 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleGRIPPING NIPPLE (NOSE) SECOND END
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.438 INCHES FIRST END IN
end_item_identificationTF-30 AIRCRAFT ENGINE
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
furnished_items_and_quantity1 LONG COUPLING NUT AND 1 COUPLING SLEEVE
NSN5975-00-139-5334
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available OUTLET ASSEMBLY,ELBOW TITLE COMPONENT PN 8891-4 MFR OUTLET ASSEMBLY,ELBOW
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONTF-30 AIRCRAFT ENGINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MIL-DTL-83798/3Interchangeable
interchangeable cross-reference
interchangeable
680-4Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-83798/3Interchangeable
interchangeable cross-reference
interchangeable
88914Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8891-4?
8891-4 is a OUTLET ASSEMBLY,ELBOW.
What parts can replace 8891-4?
There are 4 known substitutes for 8891-4: MIL-DTL-83798/3, 680-4, MIL-F-83798/3 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8891-4?
8891-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-139-5334. This indicates validated use in U.S. government and defense supply chains.
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