PartsTable TECHNICAL DATA SHEET
NSN 6650-01-384-0529Government record, cited

Retainer, Optical Element6650-01-384-0529

NSN 6650-01-384-0529 · NIIN 013840529 · Part number 1859541
Northrop Grumman Systems Corporation · FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment · CAGE 03956
Government record, cited
NSN 6650-01-384-0529 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-384-0529. Manufacturer of record part number: 1859541.
Also searched as  6650-01-384-0529 · 6650013840529 · NIIN 013840529 · 01-384-0529 · FSC 6650 Optical Instruments, Test Equipment, Components and Accessories · CAGE 03956 · 1859541
Nearby stock numbers  ·
Features
  • Retainer,optical Element — FSC 6650
  • Diameter: 2.670 INCHES NOMINAL IN
  • 1 manufacturer part number on file
  • Manufacturer of record: Northrop Grumman Systems Corporation
Identification
  • NSN: 6650-01-384-0529
  • NIIN: 013840529
  • FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: 1859541
  • Manufacturer: Northrop Grumman Systems Corporation
General Description

The Retainer,optical Element, cataloged under National Stock Number 6650-01-384-0529, 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 Northrop Grumman Systems Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6650-01-384-0529
Primary Part Number1859541
Item NameRetainer,optical Element
FSC / FSG6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Diameter2.670 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
1859541 PRIMARY Northrop Grumman Systems Corporation (USA)
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 6650-01-384-0529?

NSN 6650-01-384-0529 is a Retainer,optical Element, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.

What part numbers are listed for NSN 6650-01-384-0529?

NSN 6650-01-384-0529 has 1 manufacturer part number on file: 1859541 (Northrop Grumman Systems Corporation).

What are the specifications of 1859541?

Key specifications for 1859541: Diameter: 2.670 INCHES NOMINAL IN; Special Features: ASTM A582 TY303 CONDITION A CF. 1 specification is documented in the U.S. Government catalog.

Is NSN 6650-01-384-0529 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 6650-01-384-0529?

NSN 6650-01-384-0529 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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