NSN 6650-01-689-9564 · NIIN 016899564 · Part number ESK53-A
Thorlabs, Inc · FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment · CAGE 0LW43
Government record, cited
NSN 6650-01-689-9564 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-689-9564. Manufacturer of record part number: ESK53-A.
Also searched as6650-01-689-9564 ·
6650016899564 ·
NIIN 016899564 ·
01-689-9564 ·
FSC 6650 Optical Instruments, Test Equipment, Components and Accessories · CAGE 0LW43 · ESK53-A
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: ESK53-A
Manufacturer: Thorlabs, Inc
General Description
The Lens,optical Instrument, cataloged under National Stock Number 6650-01-689-9564, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Thorlabs, Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6650-01-689-9564
Primary Part Number
ESK53-A
Item Name
Lens,optical Instrument
FSC / FSG
6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories
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 6650-01-689-9564?
NSN 6650-01-689-9564 is a Lens,optical Instrument, manufactured by Thorlabs, Inc, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
What part numbers are listed for NSN 6650-01-689-9564?
NSN 6650-01-689-9564 has 2 manufacturer part numbers on file: ESK53-A (Lastek Pty Ltd), ESK53-A (Thorlabs, Inc).
What are the specifications of ESK53-A?
Key specifications for ESK53-A: Special Features: AR COATING 350 TO 700 NANOMETERS, 60 PIECES; Part Name Assigned by Controlling Agency: PLANO BI CONVEX, CONCAVE, MENISCUS LENS ESSENTIALS KIT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 6650-01-689-9564 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.
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.