NSN 5999-01-421-6582 · NIIN 014216582 · Part number 604AS666-1
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 30003
Government record, cited
NSN 5999-01-421-6582 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-421-6582. Manufacturer of record part number: 604AS666-1.
Also searched as5999-01-421-6582 ·
5999014216582 ·
NIIN 014216582 ·
01-421-6582 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 30003 · 604AS666-1
Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
NSN: 5999-01-421-6582
NIIN: 014216582
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 604AS666-1
Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description
The Harness,electrical Equipment, cataloged under National Stock Number 5999-01-421-6582, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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
5999-01-421-6582
Primary Part Number
604AS666-1
Item Name
Harness,electrical Equipment
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-421-6582?
NSN 5999-01-421-6582 is a Harness,electrical Equipment, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-421-6582?
NSN 5999-01-421-6582 has 1 manufacturer part number on file: 604AS666-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 604AS666-1?
Key specifications for 604AS666-1: End Item Identification: ITEM IS A HARNESS ASSY,TEMP CA DISCONNECT BOX ASSY,USED ON A DEMOUNTABLE ENGINE TEST FACILITY. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5999-01-421-6582 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.
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.