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278574PC7 — RING,RETAINING,OPTICAL ELEMENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

278574PC7: RING,RETAINING,OPTICAL ELEMENT.

The RING,RETAINING,OPTICAL ELEMENT is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: COPPER ALLOY, thread_length: 0.250 INCHES IN, overall_length: 0.312 INCHES NOMINAL IN, thread_location: EXTERNAL, outside_diameter: 3.268 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 1240-00-155-1464, 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
278574PC7
NSN: 1240-00-155-1464
FSC: 1240 — Optical Sighting and Ranging Equipment
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thread_length0.250 INCHES IN
overall_length0.312 INCHES NOMINAL IN
thread_locationEXTERNAL
outside_diameter3.268 INCHES NOMINAL IN
thread_directionRIGHT-HAND
aperture_diameter3.140 INCHES NOMINAL IN
end_item_identificationRANGEFINDER MK48
internal_flange_thickness0.062 INCHES NOMINAL IN
NSN1240-00-155-1464
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,RETAINING,OPTICAL ELEMENT TITLE COMPONENT PN 278574PC7 MFR RING,RETAINING,OPTICAL
KEY FEATURES
•
INTERNAL FLANGE THICKNESS: 0.062 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.268 INCHES NOMINAL IN
•
THREAD LENGTH: 0.250 INCHES IN
•
THREAD LOCATION: EXTERNAL
•
APERTURE DIAMETER: 3.140 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
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
INTERNAL FLANGE THICKNESS0.062 INCHES NOMINAL IN
OVERALL LENGTH0.312 INCHES NOMINAL IN
OUTSIDE DIAMETER3.268 INCHES NOMINAL IN
THREAD LENGTH0.250 INCHES IN
THREAD LOCATIONEXTERNAL
APERTURE DIAMETER3.140 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
END ITEM IDENTIFICATIONRANGEFINDER MK48
MATERIALCOPPER ALLOY
OTHER ITEMS IN FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-000-0160 1240-00-001-4014 1240-00-001-4015 1240-00-001-4488 1240-00-003-1076 1240-00-003-8404 1240-00-003-8405 1240-00-003-8406
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 278574PC7?
278574PC7 is a RING,RETAINING,OPTICAL ELEMENT.
What is the NSN for 278574PC7?
278574PC7 is cataloged in the U.S. Government catalog under NSN 1240-00-155-1464. 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.