The Retainer,balance, cataloged under National Stock Number 6605-01-003-0664, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 2 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6605-01-003-0664 |
| Primary Part Number | 683849&4 |
| Item Name | Retainer,balance |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| FSC Application Data | INERTIAL NAVIGATION SYSTEM |
| General Characteristics Item Description | TUNGSTEN BASE METAL,0.400 IN. W IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 683849&4 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 6605-01-003-0664 is a Retainer,balance, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-003-0664 has 1 manufacturer part number on file: 683849&4 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
1 possible match (shared part number, not a government interchangeability claim): 9905-01-292-5562. Verify interchangeability with system specifications before substitution.
Key specifications for 683849&4: FSC Application Data: INERTIAL NAVIGATION SYSTEM; General Characteristics Item Description: TUNGSTEN BASE METAL,0.400 IN. W IN; End Item Identification: 6605005205744. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6605-01-003-0664 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.