The Panel,indicator, cataloged under National Stock Number 1680-01-423-2174, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-423-2174 |
| Primary Part Number | UA538954-5 |
| Item Name | Panel,indicator |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| UA538954-5 PRIMARY | Triumph Thermal Systems, Llc (USA) |
| DAA3283P001-495 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| Reference | Meaning |
|---|---|
| DAA3287A819-007 | 5/9 Secondary reference Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
NSN 1680-01-423-2174 is a Panel,indicator, manufactured by Triumph Thermal Systems, Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-423-2174 has 2 manufacturer part numbers on file: UA538954-5 (Triumph Thermal Systems, Llc), DAA3283P001-495 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for UA538954-5: Special Features: DRAWING NAME - INDICATOR ASSY, FLUID LEVEL, EGW, RH; End Item Identification: B-2 AIRCRAFT; Nuclear Hardness Critical Feature: HARDENED. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-01-423-2174 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.