The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-01-149-6939, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Measurement Systems Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-149-6939 |
| Primary Part Number | 503111 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — No Item Name Available |
| Manufacturer | Measurement Systems Inc |
| Status | ACTIVE |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Shaft Diameter | 0.1248 INCHES MAXIMUM IN |
| Undercut Width | 0.0570 INCHES MINIMUM IN |
| Bearing Type | BALL SHAFT |
| Features Provided | HUMIDITY PROOF |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 ALL SECTIONS |
| Pilot Diameter Runout | 0.001 INCHES IN |
| Shaft Radial Play | 0.003 INCHES IN |
| Shaft Runout | 0.001 INCHES IN |
| Effective Electrical Rotation in Deg Angular Rotation | 350.0 NOMINAL |
| Shaft End Play | 0.005 INCHES IN |
| Maximum Starting Torque | 0.27 INCH-OUNCES IN |
| Lateral Runout | 0.002 INCHES IN |
| Mechanical Backlash in Deg Angular Rotation | 0.1 |
| Fragility Factor | MODERATELY RUGGED |
| Maximum Running Torque | 0.27 INCH-OUNCES IN |
| Actuator Type | SINGLE SHAFT |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 ALL SECTIONS |
| Rotary Actuator Travel in Angular Deg | 360.0 NOMINAL |
| Function Characteristic Per Section | ALL SECTIONS LINEAR |
| Mounting Method | CLAMP RING(S) |
| Electrical Resistance Per Section | 25.0 KILOHMS ALL SECTIONS |
| Function Conformity Per Section | ALL SECTIONS INDEPENDENT LINEARITY |
| Precious Material and Location | TERMINAL SURFACES GOLD |
| Resistance Tolerance Per Section in Percent | -3.0 TO 3.0 ALL SECTIONS |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR ALL SECTIONS |
| Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 ALL SECTIONS |
| Actuator Travel Control Feature | CONTINUOUS MOTION |
| Precious Material | GOLD |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 70.0 ALL SECTIONS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6530S-428-253/253 | Bourns Inc (USA) |
| 3111 | Measurement Systems Inc (USA) |
| 503111 PRIMARY | Measurement Systems Inc (USA) |
NSN 5905-01-149-6939 is a Resistor,variable,wire Wound,pre, manufactured by Measurement Systems Inc, classified under FSC 5905 (No Item Name Available). Status: active.
NSN 5905-01-149-6939 has 3 cross-referenced part numbers: 6530S-428-253/253 (Bourns Inc), 3111 (Measurement Systems Inc), 503111 (Measurement Systems Inc).
There are 12 known substitutes for 5905-01-149-6939: 3110-00-158-5980, 5331-00-166-0969, 1005-00-344-6235 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 503111: Pilot Length: 0.0620 INCHES NOMINAL IN; Shaft Diameter: 0.1248 INCHES MAXIMUM IN; Undercut Width: 0.0570 INCHES MINIMUM IN; Bearing Type: BALL SHAFT. 30 total characteristics are documented in the Federal Logistics Information System.