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Technical Data Sheet
PartsTable / COMPONENT / 539D786P1
539D786P1 ✓ 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

CELL ASSEMBLY,OPTICAL INSTRUMENT. Key specifications include material: ALUMINUM ALLOY 2024, thread_size: 4 3/8-32, thread_class: 2A A, thread_length: 0.280 INCHES IN, overall_height: 4.160 INCHES NOMINAL IN, thread_location: EXTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1270-00-890-0723, 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
539D786P1
NSN: 1270-00-890-0723
FSC: 1270
CAGE: 2P875 — PFG PRECISION OPTICS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
thread_size4 3/8-32
thread_class2A A
thread_length0.280 INCHES IN
overall_height4.160 INCHES NOMINAL IN
thread_locationEXTERNAL
thread_directionRIGHT-HAND
eccentric_constructionNOT PROVIDED
thread_pitch_diameters+4.3487 TO 4.3533 INCHES IN
optical_element_quantity2
screw_thread_series_designatorUNS
accessory_components_and_quantityRETAINER,OPTICAL ELEMENT 1
NSN1270-00-890-0723
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CELL ASSEMBLY,OPTICAL INSTRUMENT TITLE COMPONENT PN 539D786P1 MFR CELL ASSEMBLY,OPTICAL
KEY FEATURES
•
SCREW THREAD SERIES DESIGNATOR: UNS
•
THREAD PITCH DIAMETERS: +4.3487 TO 4.3533 INCHES IN
•
ECCENTRIC CONSTRUCTION: NOT PROVIDED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-268, T351-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 2024
•
OPTICAL ELEMENT QUANTITY: 2
•
THREAD LOCATION: EXTERNAL
•
ACCESSORY COMPONENTS AND QUANTITY: RETAINER,OPTICAL ELEMENT 1
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS (FLIS)
SCREW THREAD SERIES DESIGNATORUNS
THREAD PITCH DIAMETERS+4.3487 TO 4.3533 INCHES IN
ECCENTRIC CONSTRUCTIONNOT PROVIDED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268, T351-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2024
OPTICAL ELEMENT QUANTITY2
THREAD LOCATIONEXTERNAL
ACCESSORY COMPONENTS AND QUANTITYRETAINER,OPTICAL ELEMENT 1
THREAD LENGTH0.280 INCHES IN
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1786Interchangeable
interchangeable cross-reference
interchangeable
1786-BInterchangeable
interchangeable cross-reference
interchangeable
710871Interchangeable
interchangeable cross-reference
interchangeable
C101025Interchangeable
interchangeable cross-reference
interchangeable
4000519Interchangeable
interchangeable cross-reference
interchangeable
101025Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 539D786P1?
539D786P1 is a CELL ASSEMBLY,OPTICAL INSTRUMENT.
What parts can replace 539D786P1?
There are 8 known substitutes for 539D786P1: 1786, 1786-B, 710871 and 5 more. Substitute compatibility should be verified for your specific system.
Is 539D786P1 still available?
539D786P1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026