Cell, Optical Element6650-01-254-0491

NSN 6650-01-254-0491 · NIIN 012540491

FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment

Government record, cited

Also searched as 6650-01-254-0491 · 6650012540491 · NIIN 012540491 · 01-254-0491 · FSC 6650 Optical Instruments, Test Equipment, Components and Accessories

Nearby stock numbers ← 6650-01-254-0414 · 6650-01-254-0492 →

Features

Cell,optical Element — FSC 6650
Overall Diameter: 8.970 INCHES NOMINAL IN
Eccentric Construction: NOT PROVIDED
Chamfer Location: INTERNAL THREAD END
Chamfer Size: 0.050 IN. BY 45 DEG IN
Material: ALUMINUM ALLOY

Identification

NSN: 6650-01-254-0491
NIIN: 012540491
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
FSG: 66 — Instruments and Laboratory Equipment

General Description

The Cell,optical Element, cataloged under National Stock Number 6650-01-254-0491, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	6650-01-254-0491
Item Name	Cell,optical Element
FSC / FSG	6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories
Status	ACTIVE
Overall Diameter	8.970 INCHES NOMINAL IN
Eccentric Construction	NOT PROVIDED
Chamfer Location	INTERNAL THREAD END
Chamfer Size	0.050 IN. BY 45 DEG IN
Material	ALUMINUM ALLOY

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL Q — CCL Item — Commerce Control List
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
2439711-1	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

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

6650-00-000-0164 · Item name not on file

6650-00-001-2319

ARM,SHUTTER,SPECTROMETER

6650-00-001-2322

PLATE,MOUNTING,SPECTROMETER LAMP

6650-00-001-2323

LENS,OPTICAL INSTRUMENT

6650-00-001-2324

PLATE,SPECTROMETER DOOR

6650-00-001-2326

NOZZLE,AIR,SPECTROMETER

6650-00-001-2327

PLATE,LEFT,SPECTROMETER

6650-00-001-2328

6650-00-001-2328 · Item name not on file

Frequently Asked Questions

What is NSN 6650-01-254-0491?

NSN 6650-01-254-0491 is a Cell,optical Element, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.

What are the specifications of 6650-01-254-0491?

Key specifications for 6650-01-254-0491: Overall Diameter: 8.970 INCHES NOMINAL IN; Eccentric Construction: NOT PROVIDED; Overall Length: 8.970 INCHES NOMINAL IN; Overall Width: 0.250 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 6650-01-254-0491 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 6650-01-254-0491?

NSN 6650-01-254-0491 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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