The Resistor Set,matched, cataloged under National Stock Number 5905-01-090-2041, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Shallcross Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-090-2041 |
| Primary Part Number | R2181-129 |
| Item Name | Resistor Set,matched |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Shallcross Inc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -1.0 TO 1.0 |
| Electrical Resistance | 4.33 KILOHMS AND 15.0 KILOHMS |
| Component Identifying Number | A600A044-130 PART NO. AND A600A044-131 PART NO. AND A600A044-132 PART NO. |
| Component Controlling Agency | SINGER CO THE KEARFOTT DIV |
| Respective Resistance Tolerance in Percent | -0.1 TO 0.1 |
| Component Relationship | MATCHED TO EACH OTHER |
| Resistor Element Type | WIRE WOUND |
| Resistor Power Dissipation Rating in Watts | 0.1 |
| Resistor Quantity | 1 AND 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R2181-129 | Shallcross Inc (USA) |
| Reference | Meaning |
|---|---|
| 3251-129 | 5/9 Secondary reference Kelvin Industries Inc |
| 1645-129 | 5/9 Secondary reference Ultronix Inc |
| A600A044-129 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5905-01-090-2041 is a Resistor Set,matched, manufactured by Shallcross Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-090-2041 has 1 manufacturer part number on file: R2181-129 (Shallcross Inc).
Key specifications for R2181-129: Resistance Tolerance in Percent: -1.0 TO 1.0; Electrical Resistance: 4.33 KILOHMS AND 15.0 KILOHMS; Component Identifying Number: A600A044-130 PART NO. AND A600A044-131 PART NO. AND A600A044-132 PART NO.; Component Controlling Agency: SINGER CO THE KEARFOTT DIV. 9 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.
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.