The Network,summation, cataloged under National Stock Number 5915-00-925-4642, 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 - Mitchel Field. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5915-00-925-4642 |
| Primary Part Number | 77-273-169 |
| Item Name | Network,summation |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| General Characteristics Item Description | 30.0 VOLTS DC AND 24.0 VOLTS RMS MAXIMUM SIGNAL VOLTAGE; MINUS 0.0 DEGREES CENTIGRADE TO PLUS 50.0 DEGREES CENTIGRADE OPERATING TEMPERATURE RANGE; HERMETICALLY SEALED; TWO CAPTIVE MOUNTING SCREWS; 3.220 INCHES MAXIMUM BODY LENGTH; 1.030 INCHES MAXIMUM BODY WIDTH; 4.861 INCHES MAXIMUM OVERALL HEIGHT; ONE CONNECTOR RECEPTACLE; SIX PIN TERMINALS IN |
| 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 |
|---|---|
| 1440634-169 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 77-273-169 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 1440634-169 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 1440634-169 | Meggitt (new Hampshire), Inc (USA) |
| Reference | Meaning |
|---|---|
| 1440634-169 | 5/9 Secondary reference U.S. Government activity |
| 1440634-169REVAS | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5915-00-925-4642 is a Network,summation, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-00-925-4642 has 4 manufacturer part numbers on file: 1440634-169 (Lockheed Martin Corporation Div Rms - Mitchel Field), 77-273-169 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1440634-169 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 1440634-169 (Meggitt (new Hampshire), Inc).
Key specifications for 77-273-169: General Characteristics Item Description: 30.0 VOLTS DC AND 24.0 VOLTS RMS MAXIMUM SIGNAL VOLTAGE; MINUS 0.0 DEGREES CENTIGRADE TO PLUS 50.0 DEGREES CENTIGRADE OPERATING TEMPERATURE RANGE; HERMETICALLY SEALED; TWO CAPTIVE MOUNTING SCREWS; 3.220 INCHES MAXIMUM BODY LENGTH; 1.030 INCHES MAXIMUM BODY WIDTH; 4.861 INCHES MAXIMUM OVERALL HEIGHT; ONE CONNECTOR RECEPTACLE; SIX PIN TERMINALS IN. 1 specification is 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.