The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-007-1442, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Boonton Electronics Corporation Div Boonton Electronics. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-007-1442 |
| Primary Part Number | 311-255 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Boonton Electronics Corporation Div Boonton Electronics |
| Status | ACTIVE |
| Body Diameter | 0.750 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 5.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.438 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Mounting Method | STANDARD BUSHING |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -100.0 TO 250.0 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 1.500 INCHES NOMINAL IN |
| Body Length | 0.500 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Mounting Bushing Length | 0.375 INCHES NOMINAL IN |
| Device Design Type | NONTURN AT 9:00 OCLOCKUNABLE TO DECODE |
| 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 |
|---|---|
| 311-255 | Boonton Electronics Corporation Div Boonton Electronics (USA) |
| Reference | Meaning |
|---|---|
| 550-5K-2W1 1/2IN. SHAFT | 5/9 Secondary reference Cts Corp Berne Div Thick Film Products Group |
| WA70603 | 3/9 Design control — primary reference Cts of West Liberty Inc |
NSN 5905-01-007-1442 is a Resistor,variable,nonwire Wound,, manufactured by Boonton Electronics Corporation Div Boonton Electronics, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-007-1442 has 1 manufacturer part number on file: 311-255 (Boonton Electronics Corporation Div Boonton Electronics).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-280-5347. Verify interchangeability with system specifications before substitution.
Key specifications for 311-255: Body Diameter: 0.750 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 5.0 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 150.0 SINGLE SECTION. 24 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.