The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-013-6992, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bi Technologies Corporation Div Bi Technologies Corp.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-013-6992 |
| Primary Part Number | 72PXR50K-71B |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bi Technologies Corporation Div Bi Technologies Corp. |
| Status | ACTIVE |
| Electrical Resistance Per Section | 50.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Body Style | RECTANGULAR |
| Terminal Length | 0.110 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Body Width | 0.375 INCHES NOMINAL IN |
| Body Height | 0.375 INCHES NOMINAL IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -100.0 TO 100.0 SINGLE SECTION |
| Terminal Location | REAR END |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Actuator Type | FLUSH DRIVE WITH SLOT-HOLE |
| Body Length | 0.188 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.280 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 0.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 280.0 NOMINAL |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 70.0 SINGLE SECTION |
| 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 |
|---|---|
| 72PXR50K-71B | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| 72PX-71-0-503M | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| 63TW-503 | Vishay Sprague Inc (USA) |
| 63H503T602 | Vishay Sprague Inc (USA) |
| Reference | Meaning |
|---|---|
| 3386R-T07-503 | 5/9 Secondary reference U.S. Government activity |
| 72-71-0 | 5/9 Secondary reference Bi Technologies Corporation Div Bi Technologies Corp. |
| E2C503 | 5/9 Secondary reference Rockwell Automation, Inc. Dba Rockwell Automation |
| 311-1164-00 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5905-01-013-6992 is a Resistor,variable,nonwire Wound,, manufactured by Bi Technologies Corporation Div Bi Technologies Corp., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-013-6992 has 4 manufacturer part numbers on file: 72PXR50K-71B (Bi Technologies Corporation Div Bi Technologies Corp.), 72PX-71-0-503M (Bi Technologies Corporation Div Bi Technologies Corp.), 63TW-503 (Vishay Sprague Inc), 63H503T602 (Vishay Sprague Inc).
4 possible matches (shared part number, not a government interchangeability claim): 6625-01-083-2015, 5340-01-272-5766, 5331-01-621-5370. Verify interchangeability with system specifications before substitution.
Key specifications for 72PXR50K-71B: Overall Height: 0.375 INCHES NOMINAL IN; Electrical Resistance Per Section: 50.0 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Section Quantity: 1. 20 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.