The Weight,trim,compass, cataloged under National Stock Number 6670-00-678-2178, is classified within Federal Supply Class 6670 (Scales and Balances) of the Instruments and Laboratory Equipment group. The manufacturer of record is Northrop Grumman Systems Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Weight,trim,compass |
| FSC / FSG | 6670 — Scales and Balances (FSG 66) |
| Manufacturers | Northrop Grumman Systems Corporation (CAGE 03956) |
| Parameter | Value |
|---|---|
| NSN | 6670-00-678-2178 |
| Primary Part Number | 685221PC16 |
| Item Name | Weight,trim,compass |
| FSC / FSG | 6670 / 66 — Scales and Balances |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 685221PC16 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 685221PC16 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
| 856584 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 6670-00-678-2178 is a Weight,trim,compass, manufactured by Northrop Grumman Systems Corporation, classified under FSC 6670, Scales and Balances. Status: active.
NSN 6670-00-678-2178 has 1 manufacturer part number on file: 685221PC16 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-387-6405. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.