The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-01-137-1604, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-137-1604 |
| Primary Part Number | 77C707864 |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Body Diameter | 2.000 INCHES NOMINAL IN |
| Electrical Resistance Per Section | 2.400 KILOHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0600 INCHES NOMINAL IN |
| Undercut Width | 0.0550 INCHES NOMINAL IN |
| Section Quantity | 1 |
| Mounting Facility Quantity | 3 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Undercut Diameter | 1.875 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Mounting Hole/stud Circle Diameter | 1.500 INCHES NOMINAL IN |
| Angle Between Centerlines of Mounting Holes in Deg | 120.0 |
| Mounting Method | THREADED STUD(S) |
| Shaft Style | ROUND, SLOTTED |
| Angle of Mounting Hole in Deg | 120.0 |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.938 INCHES NOMINAL IN |
| Pilot Diameter | 1.8700 INCHES NOMINAL IN |
| Body Length | 1.000 INCHES NOMINAL IN |
| Pilot Length | 0.0600 INCHES NOMINAL IN |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| Rotary Actuator Travel in Angular Deg | 360.0 NOMINAL |
| Function Conformity Per Section | SINGLE SECTION INDEPENDENT LINEARITY |
| 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 |
|---|---|
| 77C707864 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 9708941 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 3971 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 7482686 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
NSN 5905-01-137-1604 is a Resistor,variable,wire Wound,pre, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-137-1604 has 1 manufacturer part number on file: 77C707864 (Lockheed Martin Corporation Div Rms).
2 possible matches (shared part number, not a government interchangeability claim): 6520-01-180-3240, 4810-01-224-2943. Verify interchangeability with system specifications before substitution.
Key specifications for 77C707864: Body Diameter: 2.000 INCHES NOMINAL IN; Electrical Resistance Per Section: 2.400 KILOHMS SINGLE SECTION; Mounting Lip Depth: 0.0600 INCHES NOMINAL IN; Undercut Width: 0.0550 INCHES NOMINAL IN. 22 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.