The Test Set,telephone, cataloged under National Stock Number 6625-01-102-9105, is classified within Federal Supply Class 6625 (Electrical and Electronic Properties Measuring and Testing Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Colcom Inc. Government technical data includes 6 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6625-01-102-9105 |
| Primary Part Number | 421A-2 |
| Item Name | Test Set,telephone |
| FSC / FSG | 6625 / 66 — Electrical and Electronic Properties Measuring and Testing Instruments |
| Manufacturer | Colcom Inc |
| Status | ACTIVE |
| Length | 6.375 INCHES NOMINAL IN |
| Electrical Power Source Relationship | OPERATING |
| Depth | 1.625 INCHES NOMINAL IN |
| Enclosure Feature | SINGLE ITEM W/HOUSING |
| Width | 3.375 INCHES NOMINAL IN |
| Test Type for Which Designed | PULSE DETECTION; BIPOLAR VIOLATION DETECTION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Acquisition advice code | LU |
| Weight | 0.2500 lbs |
| Cube | 0.0006 cu ft |
| Part Number | Manufacturer |
|---|---|
| 421A-2 PRIMARY | Colcom Inc (USA) |
| Reference | Meaning |
|---|---|
| 421A-2 | 5/9 Secondary reference Joslyn Products |
NSN 6625-01-102-9105 is a Test Set,telephone, manufactured by Colcom Inc, classified under FSC 6625, Electrical and Electronic Properties Measuring and Testing Instruments. Status: active.
NSN 6625-01-102-9105 has 1 manufacturer part number on file: 421A-2 (Colcom Inc).
Key specifications for 421A-2: Length: 6.375 INCHES NOMINAL IN; Electrical Power Source Relationship: OPERATING; Depth: 1.625 INCHES NOMINAL IN; Enclosure Feature: SINGLE ITEM W/HOUSING. 6 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.