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Technical Data Sheet
PartsTable / MRO / 139539
139539 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 139539 is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, housing_bore_diameter: 1.828 INCHES NOMINAL IN, sealing_element_style: ANGULAR, accommodated_shaft_diameter: 1.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-213-2773, 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
MRO→ MRO_GENERAL→ 139539
NSN: 6625-00-213-2773
FSC: 6625
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
housing_bore_diameter1.828 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.375 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN6625-00-213-2773
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 139539 TITLE COMPONENT PN 139539 MFR 139539
KEY FEATURES
•
MATERIAL: ALUMINUM
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH22.950 INCHES NOMINAL IN
MATERIALALUMINUM
OVERALL DEPTH3.280 INCHES NOMINAL IN
OVERALL WIDTH19.620 INCHES NOMINAL IN
OVERALL LENGTH22.950 INCHES NOMINAL IN
MATERIALALUMINUM
OVERALL DEPTH3.280 INCHES NOMINAL IN
OVERALL WIDTH19.620 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
139539Interchangeable
interchangeable cross-reference
interchangeable
64870Interchangeable
interchangeable cross-reference
interchangeable
182112Interchangeable
interchangeable cross-reference
interchangeable
49510Interchangeable
interchangeable cross-reference
interchangeable
MX9489TPM25Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 139539?
139539 is a 139539. It is classified as a MRO (MRO_GENERAL).
What parts can replace 139539?
There are 5 known substitutes for 139539: 139539, 64870, 182112 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 139539?
139539 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-213-2773. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026