91637 — SPOTTING INSTRUMENT,OPTICAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

91637: SPOTTING INSTRUMENT,OPTICAL.

The SPOTTING INSTRUMENT,OPTICAL is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include focusing_type: ADJUSTABLE, scale_markings: PROVIDED, magnification_type: VARIABLE, optical_device_type: LENS AND PRISM, part_name_assigned_by_controlling_agency: MARK 4 TACTICAL SPOTTING SCOPE. This part is cataloged in the U.S.

Government catalog under NSN 1730-00-629-5632, 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

91637

NSN: 1730-00-629-5632
NIINs: 006295632, 007766396, 016182712
FSC: 1730 — Aircraft Ground Servicing Equipment
CAGE: 02708 — AGE LOGISTICS CORPORATION (USA)

SPECIFICATIONS

focusing_type	ADJUSTABLE
scale_markings	PROVIDED
magnification_type	VARIABLE
optical_device_type	LENS AND PRISM
part_name_assigned_by_controlling_agency	MARK 4 TACTICAL SPOTTING SCOPE
NSN	1730-00-629-5632

COMPONENT DIAGRAM

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)

SUBSTITUTES & CROSS-REFERENCES 3

53A22157Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

53B22042Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

57A35A44Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 91637?

91637 is a SPOTTING INSTRUMENT,OPTICAL.

What parts can replace 91637?

There are 3 known substitutes for 91637: 53A22157, 53B22042, 57A35A44. Substitute compatibility should be verified for your specific system.

What is the NSN for 91637?

91637 is cataloged in the U.S. Government catalog under NSN 1730-00-629-5632. This indicates validated use in U.S. government and defense supply chains.

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91637 — SPOTTING INSTRUMENT,OPTICAL

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