The Filter,band Pass, cataloged under National Stock Number 5915-01-138-9660, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-138-9660 |
| Primary Part Number | 77C717558 |
| Item Name | Filter,band Pass |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Reference Frequency Per Function | 5.12 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Facility Type and Quantity | 4 THREADED STUD(S) LOCATION NOT OTHERWISE SPECIFIED |
| Inclosure Type | ENCASED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 1.700 INCHES NOMINAL IN |
| Functional Terminal Type and Quantity | 2 SOLDER STUD GROUND THIRD FUNCTION |
| Functional Terminal Type and Quantity | 1 SOLDER STUD OUTPUT SECOND FUNCTION |
| Functional Terminal Type and Quantity | 1 SOLDER STUD INPUT FIRST FUNCTION |
| Source Impedance Rating Per Function | 2.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Body Width | 2.125 INCHES NOMINAL IN |
| Body Height | 4.500 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR TERMINAL/TERMINALS ON ONE SURFACE |
| Mounting Facility Screw Thread Series Designator | UNF |
| Nominal Thread Size | 0.190 INCHES IN |
| Body Length | 2.250 INCHES NOMINAL IN |
| Discrimination at Specified Frequencies Per Function in Decibels | 60.0 MINIMUM BLANK AND 1.2 MAXIMUM BLANK FIRST FUNCTION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 1.600 INCHES NOMINAL IN |
| Frequency Band Width Per Function | 5.035 KILOHERTZ BLANK AND 5.205 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Operating Temp Range | -15.0 TO 45.0 CELSIUS DEGC |
| Insertion Loss at Reference Frequency Per Function in Decibels | 10.75 BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Load Impedance Per Function | 2.0 KILOHMS BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Specified Frequencies of Discrimination Per Function | 4.675 KILOHERTZ BLANK AND 5.035 KILOHERTZ BLANK AND 5.205 KILOHERTZ BLANK AND 5.565 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FS1389-660 | Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc (USA) |
| 77C717558 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| F-10574 | 5/9 Secondary reference Cen Electronics a Div of Chloride Power Electronics Inc |
| 77C717558P001 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
NSN 5915-01-138-9660 is a Filter,band Pass, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-138-9660 has 2 manufacturer part numbers on file: FS1389-660 (Frequency Selective Networks, Inc. Dba Frequency Selective Networks Inc), 77C717558 (Lockheed Martin Corporation Div Rms).
Key specifications for 77C717558: Reference Frequency Per Function: 5.12 KILOHERTZ BLANK LOCATION NOT OTHERWISE SPECIFIED; Mounting Facility Type and Quantity: 4 THREADED STUD(S) LOCATION NOT OTHERWISE SPECIFIED; Overall Height: 5.000 INCHES NOMINAL IN; Inclosure Type: ENCASED. 21 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.