The Wrench,open End Box, cataloged under National Stock Number 5120-01-425-9255, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Wright Tool Co. Government technical data includes 8 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-425-9255 |
| Primary Part Number | 1618 |
| Item Name | Wrench,open End Box |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Wright Tool Co |
| Status | ACTIVE |
| Wrenching Surface Size | 0.500 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.562 INCHES NOMINAL SECOND END IN |
| Style Designator | FLARE NUT DOUBLE END |
| Specification/standard Data | 05047-ASME B107.100 CAT 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 1 TYPE |
| Wrenching Surface Shape | 6 POINT BOTH ENDS INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| 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 |
|---|---|
| 1618 PRIMARY | Wright Tool Co (USA) |
| Reference | Meaning |
|---|---|
| B107.40 TY1 | 5/9 Secondary reference U.S. Government activity |
| B107.100 CAT 40 TY1 | 5/1 Secondary reference U.S. Government activity |
| B107.100 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| B107.40 | 5/9 Secondary reference The American Society of Mechanical Engineers |
NSN 5120-01-425-9255 is a Wrench,open End Box, manufactured by Wright Tool Co, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-425-9255 has 1 manufacturer part number on file: 1618 (Wright Tool Co).
Key specifications for 1618: Wrenching Surface Size: 0.500 INCHES NOMINAL FIRST END IN; Wrenching Surface Size: 0.562 INCHES NOMINAL SECOND END IN; Style Designator: FLARE NUT DOUBLE END; Overall Length: 7.500 INCHES NOMINAL IN. 8 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.