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11780081 — SPACER,OPTICAL ELEMENT

✓ Government record, cited
COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE · COMPONENT
PRODUCT OVERVIEW

11780081: SPACER,OPTICAL ELEMENT.

The SPACER,OPTICAL ELEMENT is a COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE optical transceiver module designed for high-speed data center interconnects. Key specifications include MATERIAL: ALUMINUM ALLOY, FLANGE WIDTH: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN, OVERALL LENGTH: 0.413 INCHES MINIMUM AND 0.423 INCHES MAXIMUM IN, SPECIAL FEATURES: HAS 12 SLOTS EQUALLY SPACED AT 0.156 IN. DEEP IN, STYLE DESIGNATOR: SPACER, BODY OUTSIDE DIAMETER: 4.245 INCHES MAXIMUM IN.

This part is cataloged in the U.S. Government catalog under NSN 6650-01-081-5693, 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
11780081
NSN: 6650-01-081-5693
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
MATERIALALUMINUM ALLOY
FLANGE WIDTH0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
OVERALL LENGTH0.413 INCHES MINIMUM AND 0.423 INCHES MAXIMUM IN
SPECIAL FEATURESHAS 12 SLOTS EQUALLY SPACED AT 0.156 IN. DEEP IN
STYLE DESIGNATORSPACER
BODY OUTSIDE DIAMETER4.245 INCHES MAXIMUM IN
TAPER BORE MAJOR DIAMETER4.045 INCHES MAXIMUM IN
TAPER BORE MINOR DIAMETER3.965 INCHES MAXIMUM IN
NSN6650-01-081-5693
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE SPACER,OPTICAL ELEMENT TITLE COMPONENT PN 11780081 MFR COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE SPACER,OPTICAL ELEMENT
KEY FEATURES
•
TAPER BORE MINOR DIAMETER: 3.965 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 4.245 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPACER
•
TAPER BORE MAJOR DIAMETER: 4.045 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY
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
TAPER BORE MINOR DIAMETER3.965 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER4.245 INCHES MAXIMUM IN
STYLE DESIGNATORSPACER
OVERALL LENGTH0.413 INCHES MINIMUM AND 0.423 INCHES MAXIMUM IN
TAPER BORE MAJOR DIAMETER4.045 INCHES MAXIMUM IN
SPECIAL FEATURESHAS 12 SLOTS EQUALLY SPACED AT 0.156 IN. DEEP IN
FLANGE WIDTH0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6650-00-000-0164 6650-00-001-2319 6650-00-001-2322 6650-00-001-2323 6650-00-001-2324 6650-00-001-2326 6650-00-001-2327 6650-00-001-2328
SUBSTITUTES & CROSS-REFERENCES 1
42461-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 11780081?
11780081 is a SPACER,OPTICAL ELEMENT manufactured by COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE.
What parts can replace 11780081?
There is 1 known substitute for 11780081: 42461-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 11780081?
11780081 is cataloged in the U.S. Government catalog under NSN 6650-01-081-5693. 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.