The Resistor Assembly, cataloged under National Stock Number 5905-01-256-2129, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Northrop Grumman Corp Electronic Systems Defensive System Div. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-256-2129 |
| Primary Part Number | 121905-037 |
| Item Name | Resistor Assembly |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Northrop Grumman Corp Electronic Systems Defensive System Div |
| Status | ACTIVE |
| Component Name | FIXED FILM RESISTOR |
| Component Quantity | 3 |
| Resistance Tolerance in Percent | -1.0 TO 1.0 |
| Electrical Resistance | 511.0 KILOHMS AND 1.0 MEGOHMS AND 2.0 MEGOHMS |
| Component Identifying Number | RNR55H5113FS PART NO. AND RNR55H1004FS PART NO. AND RNC55H2004FS PART NO. |
| Terminal Quantity | 6 |
| Terminal Type | WIRE LEAD |
| Mounting Method | SOLDER |
| Component Controlling Agency | NORTHROP CORP |
| Criticality Code Justification | FEAT |
| Component Relationship | NOT MATCHED |
| Resistor Power Dissipation Rating in Watts | 0.125 |
| Assembly Construction Method | MOUNTED ON SOCKET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 121905-037 PRIMARY | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
NSN 5905-01-256-2129 is a Resistor Assembly, manufactured by Northrop Grumman Corp Electronic Systems Defensive System Div, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-256-2129 has 1 manufacturer part number on file: 121905-037 (Northrop Grumman Corp Electronic Systems Defensive System Div).
Key specifications for 121905-037: Component Name: FIXED FILM RESISTOR; Component Quantity: 3; Resistance Tolerance in Percent: -1.0 TO 1.0; Electrical Resistance: 511.0 KILOHMS AND 1.0 MEGOHMS AND 2.0 MEGOHMS. 13 specifications are 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 5905-01-256-2129 has DEMIL Code Q. 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.