The Interconnecting Box, cataloged under National Stock Number 5975-01-155-2324, is classified within Federal Supply Class 5975 (Electrical Hardware and Supplies) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Abb Installation Products Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5975-01-155-2324 |
| Primary Part Number | KC-37 |
| Item Name | Interconnecting Box |
| FSC / FSG | 5975 / 59 — Electrical Hardware and Supplies |
| Manufacturer | Abb Installation Products Inc |
| Status | ACTIVE |
| Functional Description | USED AS 37-STATION INTERCOM W/TONE,ROTARY,OR MIXED TONE/ROTARY TELEPHONE SYSTEMS |
| 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 |
|---|---|
| KC-37 PRIMARY | Abb Installation Products Inc (USA) |
| Reference | Meaning |
|---|---|
| KR-37 | 5/9 Secondary reference Augat Communication Products Inc |
| KC-37 | 3/9 Design control — primary reference Augat Communication Products Inc |
NSN 5975-01-155-2324 is a Interconnecting Box, manufactured by Abb Installation Products Inc, classified under FSC 5975, Electrical Hardware and Supplies. Status: active.
NSN 5975-01-155-2324 has 1 manufacturer part number on file: KC-37 (Abb Installation Products Inc).
Key specifications for KC-37: Special Features: STATION LAMP CONTROL; BELL OR BUZZER SIGNALING; RINGBACK TONE; CAN BE EXPANDED TO TONE SYSTEMS AFTER ROTARY-TO-TONE CONVERSION; DIGITAL CIRCUITRY; USED W/ 1A1 AND 1A2 TYPE KEY SYSTEMS; MOUNTS IN APPARATUS CABINET,RELAY RACK,OR ON WALL; INCREASED STATION CAPACITY POSSIBLE W/ ADDED EQUIPMENT; Functional Description: USED AS 37-STATION INTERCOM W/TONE,ROTARY,OR MIXED TONE/ROTARY TELEPHONE SYSTEMS. 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.