The Phase Shifter,electronic, cataloged under National Stock Number 5915-01-336-0308, is classified within Federal Supply Class 5915 (Filters and Networks) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Merrimac Industries, Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5915-01-336-0308 |
| Primary Part Number | IS/57233A |
| Item Name | Phase Shifter,electronic |
| FSC / FSG | 5915 / 59 — Filters and Networks |
| Manufacturer | Merrimac Industries, Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| IS/57233A PRIMARY | Merrimac Industries, Inc (USA) |
| 7547373P3 | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| IF/52457 | 5/9 Secondary reference Merrimac Industries, Inc |
| 7547373 | 5/9 Secondary reference U.S. Government activity |
| 7547373P1 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
| 7547373P1 | 5/9 Secondary reference U.S. Government activity |
NSN 5915-01-336-0308 is a Phase Shifter,electronic, manufactured by Merrimac Industries, Inc, classified under FSC 5915, Filters and Networks. Status: active.
NSN 5915-01-336-0308 has 2 manufacturer part numbers on file: IS/57233A (Merrimac Industries, Inc), 7547373P3 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-578-5873. Verify interchangeability with system specifications before substitution.
Key specifications for IS/57233A: Criticality Code Justification: FEAT; Special Features: WEAPONS SYSTEM ESSENTIAL; 1.500IN. HIGH, 1.750 IN WIDE, 1.000 IN DEEP IN; End Item Identification: E-2C HAWKEYE, AN/APS-145 RADAR SYSTEM. 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.