5204253 — LENS,OPTICAL INSTRUMENT

✓ Government record, cited

COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE · COMPONENT

PRODUCT OVERVIEW

5204253: LENS,OPTICAL INSTRUMENT.

The LENS,OPTICAL INSTRUMENT 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 DIAMETER: 0.686 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN, MATERIAL: GLASS OPTICAL, ABBE CONSTANT: 59.900 AND 36.200, AXIAL THICKNESS: 0.236 INCHES NOMINAL AND 0.024 INCHES NOMINAL IN, REFRACTION INDEX: 1.5411 NOMINAL AND 1.6210 NOMINAL, SPECIAL FEATURES: REFLECTION REDUCING TREATMENT ON FRONT AND BACK SURFACES,JAN-M-621. This part is cataloged in the U.S.

Government catalog under NSN 6650-00-520-4253, 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

5204253

NSN: 6650-00-520-4253
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

DIAMETER	0.686 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN
MATERIAL	GLASS OPTICAL
ABBE CONSTANT	59.900 AND 36.200
AXIAL THICKNESS	0.236 INCHES NOMINAL AND 0.024 INCHES NOMINAL IN
REFRACTION INDEX	1.5411 NOMINAL AND 1.6210 NOMINAL
SPECIAL FEATURES	REFLECTION REDUCING TREATMENT ON FRONT AND BACK SURFACES,JAN-M-621
BACK FOCAL LENGTH	1.281 INCHES IN
COMPOUND LENS STYLE	DOUBLET
FSC APPLICATION DATA	BINOCULAR,M7,M16
INDIVIDUAL LENS STYLE	DOUBLE CONVEX AND MENISCUS DIVERGING
EQUIVALENT FOCAL LENGTH	1.444 INCHES IN
ELEMENT LEFT SURFACE RADIUS	0.793 INCHES AND -0.595 INCHES IN
NSN	6650-00-520-4253

COMPONENT DIAGRAM

KEY FEATURES

•

FSC APPLICATION DATA: BINOCULAR,M7,M16

•

INDIVIDUAL LENS STYLE: DOUBLE CONVEX AND MENISCUS DIVERGING

•

BACK FOCAL LENGTH: 1.281 INCHES IN

•

ELEMENT LEFT SURFACE RADIUS: 0.793 INCHES AND -0.595 INCHES IN

•

EQUIVALENT FOCAL LENGTH: 1.444 INCHES IN

•

ELEMENT RIGHT SURFACE RADIUS: -0.595 INCHES AND -4.220 INCHES IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-174,GRADE C,TYPE 541-599 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-174,GRADE C,TYPE 621-362 MIL SPEC 2ND MATERIAL RESPONSE

•

DIAMETER: 0.686 INCHES MINIMUM AND 0.689 INCHES MAXIMUM 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

FSC APPLICATION DATA	BINOCULAR,M7,M16
INDIVIDUAL LENS STYLE	DOUBLE CONVEX AND MENISCUS DIVERGING
BACK FOCAL LENGTH	1.281 INCHES IN
ELEMENT LEFT SURFACE RADIUS	0.793 INCHES AND -0.595 INCHES IN
EQUIVALENT FOCAL LENGTH	1.444 INCHES IN
ELEMENT RIGHT SURFACE RADIUS	-0.595 INCHES AND -4.220 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-G-174,GRADE C,TYPE 541-599 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-174,GRADE C,TYPE 621-362 MIL SPEC 2ND MATERIAL RESPONSE
DIAMETER	0.686 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN
ABBE CONSTANT	59.900 AND 36.200
AXIAL THICKNESS	0.236 INCHES NOMINAL AND 0.024 INCHES NOMINAL IN

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 2

6650005204253Reference document

Same NSN cross-reference

Reference document — Informative reference only

1240005204253Reference 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 5204253?

5204253 is a LENS,OPTICAL INSTRUMENT manufactured by COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE.

What parts can replace 5204253?

There are 2 known substitutes for 5204253: 6650005204253, 1240005204253. Substitute compatibility should be verified for your specific system.

What is the NSN for 5204253?

5204253 is cataloged in the U.S. Government catalog under NSN 6650-00-520-4253. This indicates validated use in U.S. government and defense supply chains.

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5204253 — LENS,OPTICAL INSTRUMENT

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