The Block Connecting, cataloged under National Stock Number 5805-01-042-2023, is classified within Federal Supply Class 5805 (Telephone and Telegraph Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi. 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5805-01-042-2023 |
| Primary Part Number | SE-630AD4 |
| Item Name | Block Connecting |
| FSC / FSG | 5805 / 58 — Telephone and Telegraph Equipment |
| Manufacturer | Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi |
| Status | ACTIVE |
| FSC Application Data | TELEPHONE AND TELEGRAPH EQUIPMENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AT630A-4 | Twacomm.com, Inc. Dba Twacomm Com Inc (USA) |
| SE-630AD4 PRIMARY | Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi (USA) |
| Reference | Meaning |
|---|---|
| 630AW4 | 5/9 Secondary reference Lucent Technologies Inc Dba Federal Marketing Group |
| 102 802 220 | 5/9 Secondary reference American Telephone and Telegraph Co |
| NE-630A1QA4 | 5/9 Secondary reference Nortel Networks |
| 630AW4 | 5/9 Secondary reference American Telephone and Telegraph Co |
| SE-630AD4 | 5/9 Secondary reference Suttle Apparatus Corp |
| NE-630AQA4 | 5/9 Secondary reference Nortel Networks |
| 102 802 220 | 3/9 Design control — primary reference Lucent Technologies Inc Dba Federal Marketing Group |
| 102-802-220 | 5/9 Secondary reference American Telephone and Telegraph Co |
| A0248241 | 5/9 Secondary reference Nortel Networks |
| SE-630AD4 | 5/9 Secondary reference Suttle Apparatus Div Suttle Corp |
NSN 5805-01-042-2023 is a Block Connecting, manufactured by Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi, classified under FSC 5805, Telephone and Telegraph Equipment. Status: active.
NSN 5805-01-042-2023 has 2 manufacturer part numbers on file: AT630A-4 (Twacomm.com, Inc. Dba Twacomm Com Inc), SE-630AD4 (Communications Systems Inc. Div Suttle Apparatus Mn Division of Csi).
Key specifications for SE-630AD4: FSC Application Data: TELEPHONE AND TELEGRAPH EQUIPMENT. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.