NSN 6605-00-441-9568 · NIIN 004419568 · Part number B639-8
L3 Technologies, Inc. Div L3 Keo · FSC 6605 — Navigational Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 34228
Government record, cited
NSN 6605-00-441-9568 — this item is cataloged by the U.S. Government under National Stock Number 6605-00-441-9568. Manufacturer of record part number: B639-8.
Manufacturer of record: L3 Technologies, Inc. Div L3 Keo
Identification
NSN: 6605-00-441-9568
NIIN: 004419568
FSC: 6605 — Navigational Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: B639-8
Manufacturer: L3 Technologies, Inc. Div L3 Keo
General Description
The Filter Assembly,rel, cataloged under National Stock Number 6605-00-441-9568, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Filter Assembly,rel
FSC / FSG
6605 — Navigational Instruments (FSG 66)
Manufacturers
Northrop Grumman Systems Corporation (CAGE 03956); L3 Technologies, Inc. Div L3 Keo (CAGE 34228)
Technical Specifications
Parameter
Value
NSN
6605-00-441-9568
Primary Part Number
B639-8
Item Name
Filter Assembly,rel
FSC / FSG
6605 / 66 — Navigational Instruments
Manufacturer
L3 Technologies, Inc. Div L3 Keo
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL D — Destroy Item
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 6605 — Navigational Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6605-00-001-3932
6605-00-001-3932 · Item name not on file
6605-00-001-3939
6605-00-001-3939 · Item name not on file
6605-00-001-3940
6605-00-001-3940 · Item name not on file
6605-00-001-4320
6605-00-001-4320 · Item name not on file
6605-00-001-4321
CONTROL UNIT,SHIP,P
6605-00-001-4322
6605-00-001-4322 · Item name not on file
6605-00-001-4323
6605-00-001-4323 · Item name not on file
6605-00-001-4327
6605-00-001-4327 · Item name not on file
Frequently Asked Questions
What is NSN 6605-00-441-9568?
NSN 6605-00-441-9568 is a Filter Assembly,rel, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 6605, Navigational Instruments. Status: active.
What part numbers are listed for NSN 6605-00-441-9568?
NSN 6605-00-441-9568 has 2 manufacturer part numbers on file: 639B010125 (Northrop Grumman Systems Corporation), B639-8 (L3 Technologies, Inc. Div L3 Keo).
Is NSN 6605-00-441-9568 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 6605-00-441-9568?
NSN 6605-00-441-9568 has DEMIL Code D. 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.