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637013 — SHAFT,TURBINE,AIRCRAFT GAS TURBI

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

637013: SHAFT,TURBINE,AIRCRAFT GAS TURBI.

SHAFT,TURBINE,AIRCRAFT GAS TURBI. Key specifications include material: ALUMINUM ALLOY, thread_class: 2B, overall_width: 1.718 INCHES NOMINAL IN, overall_height: 2.375 INCHES MAXIMUM IN, overall_length: 1.718 INCHES NOMINAL IN, style_designator: STRAIGHT TYPE W/FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 4470-00-242-2804, 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
637013
NSN: 4470-00-242-2804
NIINs: 002422804, 005932522, 014556338
FSC: 4470 — Nuclear Reactors
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
thread_class2B
overall_width1.718 INCHES NOMINAL IN
overall_height2.375 INCHES MAXIMUM IN
overall_length1.718 INCHES NOMINAL IN
style_designatorSTRAIGHT TYPE W/FLANGE
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE AND NICKEL
nominal_thread_size1.438 INCHES IN
thread_series_designatorUNEF
mounting_facility_type_and_quantity1 THREADED COUPLING
center_to_center_distance_between_mounting_facilities_parallel_to_width1.281 INCHES NOMINAL IN
NSN4470-00-242-2804
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,TURBINE,AIRCRAFT GAS TURBI TITLE COMPONENT PN 637013 MFR SHAFT,TURBINE,AIRCRAFT
KEY FEATURES
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CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
SUBSTITUTES & CROSS-REFERENCES 2
687013Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1F-6259A-PC25Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedDemilitarization required (F)
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FREQUENTLY ASKED QUESTIONS
What is 637013?
637013 is a SHAFT,TURBINE,AIRCRAFT GAS TURBI.
What parts can replace 637013?
There are 2 known substitutes for 637013: 687013, 1F-6259A-PC25. Substitute compatibility should be verified for your specific system.
What is the NSN for 637013?
637013 is cataloged in the U.S. Government catalog under NSN 4470-00-242-2804. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.