The Rack,electronic Junction, cataloged under National Stock Number 5975-01-056-5036, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Rack,electronic Junction |
| FSC / FSG | 5975 — Electrical Hardware and Supplies (FSG 59) |
| Manufacturers | Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix (CAGE 14283); Egs Electrical Group Appleton Div (CAGE 03743) |
| Parameter | Value |
|---|---|
| NSN | 5975-01-056-5036 |
| Primary Part Number | MRTB-2 |
| Item Name | Rack,electronic Junction |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| MRTB-2 PRIMARY | Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix (USA) |
| 421-501-03-2 | Egs Electrical Group Appleton Div (USA) |
| Reference | Meaning |
|---|---|
| 130-015-2 | 5/2 Secondary reference U.S. Government activity |
| 591613-2 | 5/9 Secondary reference Te Connectivity Corporation |
NSN 5975-01-056-5036 is a Rack,electronic Junction, manufactured by Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-056-5036 has 2 manufacturer part numbers on file: MRTB-2 (Amphenol Optimize Manufacturing Co. Div Amphenol Aerospace/matrix), 421-501-03-2 (Egs Electrical Group Appleton Div).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-257-3107. Verify interchangeability with system specifications before substitution.
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.