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7688728 — SPACER,OPTICAL ELEMENT

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

7688728: 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 2011, OVERALL LENGTH: 0.165 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN, SERRATION WIDTH: 0.115 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN, STYLE DESIGNATOR: SPACER, FSC APPLICATION DATA: PERISCOPE,TANK, END INTERNAL BEVEL ANGLE: 45.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 6650-00-451-1086, 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
7688728
NSN: 6650-00-451-1086
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 2011
OVERALL LENGTH0.165 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN
SERRATION WIDTH0.115 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
STYLE DESIGNATORSPACER
FSC APPLICATION DATAPERISCOPE,TANK
END INTERNAL BEVEL ANGLE45.0 DEGREES NOMINAL
STRAIGHT BORE INSIDE DIAMETER1.272 INCHES MINIMUM AND 1.278 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/3,ALLOY 2011,T3 FED SPEC SINGLE MATERIAL RESPONSE
NSN6650-00-451-1086
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 7688728 MFR COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE SPACER,OPTICAL ELEMENT
KEY FEATURES
•
FSC APPLICATION DATA: PERISCOPE,TANK
•
SERRATION WIDTH: 0.115 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
•
END INTERNAL BEVEL ANGLE: 45.0 DEGREES NOMINAL
•
STYLE DESIGNATOR: SPACER
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/3,ALLOY 2011,T3 FED SPEC SINGLE MATERIAL RESPONSE
•
STRAIGHT BORE INSIDE DIAMETER: 1.272 INCHES MINIMUM AND 1.278 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 2011
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
FSC APPLICATION DATAPERISCOPE,TANK
SERRATION WIDTH0.115 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
END INTERNAL BEVEL ANGLE45.0 DEGREES NOMINAL
STYLE DESIGNATORSPACER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/3,ALLOY 2011,T3 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.165 INCHES MINIMUM AND 0.169 INCHES MAXIMUM IN
STRAIGHT BORE INSIDE DIAMETER1.272 INCHES MINIMUM AND 1.278 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 2011
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
1240004511086Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7688728?
7688728 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 7688728?
There is 1 known substitute for 7688728: 1240004511086. Substitute compatibility should be verified for your specific system.
What is the NSN for 7688728?
7688728 is cataloged in the U.S. Government catalog under NSN 6650-00-451-1086. 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.