The Key,socket Head Screw, cataloged under National Stock Number 5120-01-147-2166, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Ampco Partners, Ltd. Dba Ampco Safety Tools. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-147-2166 |
| Primary Part Number | 420 7102 |
| Item Name | Key,socket Head Screw |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Ampco Partners, Ltd. Dba Ampco Safety Tools |
| Status | ACTIVE |
| Short Arm Length | 20.0 MILLIMETERS NOMINAL MM |
| Wrenching Surface Size | 3.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Style Designator | L-HANDLE |
| Long Arm Length | 65.0 MILLIMETERS NOMINAL MM |
| Wrenching Surface Shape | SQUARE BOTH ENDS EXTERNAL |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 420 7102 PRIMARY | Ampco Partners, Ltd. Dba Ampco Safety Tools (USA) |
| Reference | Meaning |
|---|---|
| SS3MMSAK | 5/9 Secondary reference Fastener Specialists Australia |
| 420 7102 | 5/9 Secondary reference Ampco Metal Inc. Dba Ampco Metal Inc |
NSN 5120-01-147-2166 is a Key,socket Head Screw, manufactured by Ampco Partners, Ltd. Dba Ampco Safety Tools, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-147-2166 has 1 manufacturer part number on file: 420 7102 (Ampco Partners, Ltd. Dba Ampco Safety Tools).
Key specifications for 420 7102: Short Arm Length: 20.0 MILLIMETERS NOMINAL MM; Wrenching Surface Size: 3.0 MILLIMETERS NOMINAL BOTH ENDS MM; Style Designator: L-HANDLE; Overall Length: 68.0 MILLIMETERS NOMINAL MM. 6 specifications are 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.