The Phase Shifter,electronic, cataloged under National Stock Number 5915-01-428-6681, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Robinson Laboratories Inc Dba Herley New England. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5915-01-428-6681 |
| Primary Part Number | MP-4217 |
| Item Name | Phase Shifter,electronic |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Robinson Laboratories Inc Dba Herley New England |
| Status | ACTIVE |
| Phase Shift in Deg | 22.5 LAGGING NOMINAL AND 22.5 LEADING NOMINAL |
| Terminal Type and Quantity | 4 CONNECTOR, RECEPTACLE AND 1 CONNECTOR, PLUG |
| 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 |
|---|---|
| MP-4218 | Caes Mission Systems Llc (USA) |
| 77A107817P5 | Lockheed Martin Corporation Div Rms (USA) |
| 77A107817P004 | Lockheed Martin Corporation Div Rms (USA) |
| MP-4217 PRIMARY | Robinson Laboratories Inc Dba Herley New England (USA) |
| 77A107817P3 | Lockheed Martin Corporation Div Rms (USA) |
| CPS49093 | Daico Industries, Inc. Dba Daico Industries Inc (USA) |
| CDP0926-3 PRIMARY | Daico Industries, Inc. Dba Daico Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 77A107817P003 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rms |
NSN 5915-01-428-6681 is a Phase Shifter,electronic, manufactured by Robinson Laboratories Inc Dba Herley New England, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-428-6681 has 7 manufacturer part numbers on file: MP-4218 (Caes Mission Systems Llc), 77A107817P5 (Lockheed Martin Corporation Div Rms), 77A107817P004 (Lockheed Martin Corporation Div Rms), MP-4217 (Robinson Laboratories Inc Dba Herley New England), 77A107817P3 (Lockheed Martin Corporation Div Rms) and 2 more.
Key specifications for MP-4217: Overall Height: 0.850 INCHES MAXIMUM IN; Phase Shift in Deg: 22.5 LAGGING NOMINAL AND 22.5 LEADING NOMINAL; Overall Length: 3.300 INCHES NOMINAL IN; Overall Width: 2.800 INCHES NOMINAL IN. 2 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.