The Wrench,open End, cataloged under National Stock Number 5120-00-293-2128, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-293-2128 |
| Primary Part Number | TKKX4B |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Large End Head Angle | 15.0 DEGREES NOMINAL |
| Large End Head Thickness | 0.438 INCHES MAXIMUM IN |
| Small End Head Thickness | 0.438 INCHES MAXIMUM IN |
| Small End Head Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Size | 1.125 INCHES NOMINAL SECOND END IN |
| Wrenching Surface Size | 0.785 INCHES NOMINAL FIRST END IN |
| Style Designator | DOUBLE HEAD |
| Departure From Cited Document | AS MODIFIED BY WRENCHING SURFACE SIZES AND OVERALL LENGTH |
| Nondefinitive Spec/std Data | 4 TYPE |
| Wrenching Surface Shape | OVAL BOTH ENDS INTERNAL |
| Material | STEEL 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 |
|---|---|
| TKKX4B | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
| Reference | Meaning |
|---|---|
| GGG-W-636 | 4/1 Identification reference U.S. Government activity |
| GGG-W-636 TY4 | 5/1 Secondary reference U.S. Government activity |
| TKKX4 | 5/1 Secondary reference Army, United States Department of the Dba Rock Island Arsenal Jmtc |
NSN 5120-00-293-2128 is a Wrench,open End, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-293-2128 has 1 manufacturer part number on file: TKKX4B (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for TKKX4B: Large End Head Angle: 15.0 DEGREES NOMINAL; Large End Head Thickness: 0.438 INCHES MAXIMUM IN; Small End Head Thickness: 0.438 INCHES MAXIMUM IN; Small End Head Angle: 15.0 DEGREES NOMINAL. 11 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.