NSN 6650-01-286-1929 · NIIN 012861929 · Part number 5525590
Naval Sea Systems Command · FSC 6650 — Optical Instruments, Test Equipment, Components and Accessories · FSG 66 — Instruments and Laboratory Equipment · CAGE 53711
Government record, cited
NSN 6650-01-286-1929 — this item is cataloged by the U.S. Government under National Stock Number 6650-01-286-1929. Manufacturer of record part number: 5525590.
Also searched as6650-01-286-1929 ·
6650012861929 ·
NIIN 012861929 ·
01-286-1929 ·
FSC 6650 Optical Instruments, Test Equipment, Components and Accessories · CAGE 53711 · 5525590
FSC: 6650 — Optical Instruments, Test Equipment, Components and Accessories
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 5525590
Manufacturer: Naval Sea Systems Command
General Description
The Ring,retaining,optical Element, cataloged under National Stock Number 6650-01-286-1929, 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 Naval Sea Systems Command. Government technical data includes 6 specifications, 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
Parameter
Value
NSN
6650-01-286-1929
Primary Part Number
5525590
Item Name
Ring,retaining,optical Element
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 6650-01-286-1929?
NSN 6650-01-286-1929 is a Ring,retaining,optical Element, manufactured by Naval Sea Systems Command, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
What part numbers are listed for NSN 6650-01-286-1929?
NSN 6650-01-286-1929 has 1 manufacturer part number on file: 5525590 (Naval Sea Systems Command).
What are the specifications of 5525590?
Key specifications for 5525590: Thread Length: 0.350 INCHES IN; Thread Location: INTERNAL; Thread Size: 2 1/4-12; Special Features: 125 MICROINCH SURFACE FINISH. 6 specifications are documented in the U.S. Government catalog.
Is NSN 6650-01-286-1929 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 6650-01-286-1929?
NSN 6650-01-286-1929 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.