The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-212-3864, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sensor Systems, L.l.c. Dba Sensor Systems Llc. Government technical data includes 16 specifications, 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. 3 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 | 5905-01-212-3864 |
| Primary Part Number | B503 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Sensor Systems, L.l.c. Dba Sensor Systems Llc |
| Status | ACTIVE |
| Body Diameter | 0.750 INCHES NOMINAL IN |
| Electrical Resistance Per Section | 20000.000 OHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0620 INCHES MINIMUM IN |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Section Quantity | 1 |
| Shaft Diameter | 0.1247 INCHES NOMINAL IN |
| Undercut Diameter | 0.745 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Mounting Lip Diameter | 0.7500 INCHES NOMINAL IN |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.500 INCHES NOMINAL IN |
| Pilot Diameter | 0.6250 INCHES NOMINAL IN |
| Body Length | 0.435 INCHES MINIMUM IN |
| Pilot Length | 0.0620 INCHES MINIMUM IN |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 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 |
NSN 5905-01-212-3864 is a Resistor,variable,nonwire Wound,, manufactured by Sensor Systems, L.l.c. Dba Sensor Systems Llc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-212-3864 has 2 manufacturer part numbers on file: 2210285-1 (Honeywell Intl Inc Defense Avionics Systems), B503 (Sensor Systems, L.l.c. Dba Sensor Systems Llc).
3 possible matches (shared part number, not a government interchangeability claim): 6850-01-433-8935, 3110-01-501-4735, 5998-01-534-4094. Verify interchangeability with system specifications before substitution.
Key specifications for B503: Body Diameter: 0.750 INCHES NOMINAL IN; Electrical Resistance Per Section: 20000.000 OHMS SINGLE SECTION; Mounting Lip Depth: 0.0620 INCHES MINIMUM IN; Undercut Width: 0.0570 INCHES MINIMUM IN. 16 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.