20-74-11 — MODEM,FIBER OPTIC

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

20-74-11: MODEM,FIBER OPTIC.

The MODEM,FIBER OPTIC is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: STEEL OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNEF, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 6635-00-018-5838, 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

20-74-11

NSN: 6635-00-018-5838
NIINs: 000185838, 013306352, 014118853
FSC: 6635 — Physical Properties Testing and Inspection
CAGE: 37676 — ILLINOIS TOOL WORKS, INC. DIV MAGNAFLUX (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	SLOTTED, HEXAGON
nut_height	0.625 INCHES NOMINAL IN
thread_class	2B
thread_series	UNEF
thread_direction	RIGHT-HAND
width_across_flats	2.125 INCHES NOMINAL IN
nominal_thread_size	1.250 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
end_item_identification	AUTOMATED SURFACE OBSERVING SYSTEM (ASOS)
thread_quantity_per_inch	18
general_characteristics_item_description	11/16 IN. TO 1-1/16 IN. DIA; EXPANDABLE; 6 IN. LG,INCLUDING COLLAR IN
NSN	6635-00-018-5838

COMPONENT DIAGRAM

KEY FEATURES

•

GENERAL CHARACTERISTICS ITEM DESCRIPTION: 11/16 IN. TO 1-1/16 IN. DIA; EXPANDABLE; 6 IN. LG,INCLUDING COLLAR IN

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

GENERAL CHARACTERISTICS ITEM DESCRIPTION

11/16 IN. TO 1-1/16 IN. DIA; EXPANDABLE; 6 IN. LG,INCLUDING COLLAR IN

SUBSTITUTES & CROSS-REFERENCES 1

6635PL0777451Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 20-74-11?

20-74-11 is a MODEM,FIBER OPTIC.

What parts can replace 20-74-11?

There is 1 known substitute for 20-74-11: 6635PL0777451. Substitute compatibility should be verified for your specific system.

What is the NSN for 20-74-11?

20-74-11 is cataloged in the U.S. Government catalog under NSN 6635-00-018-5838. This indicates validated use in U.S. government and defense supply chains.

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20-74-11 — MODEM,FIBER OPTIC

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