The Wrench,open End, cataloged under National Stock Number 5120-01-228-8147, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Metric and Multistandard Components Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5120-01-228-8147 |
| Primary Part Number | BS 1/4X5/16 73110 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Metric and Multistandard Components Corp |
| Status | ACTIVE |
| Wrenching Surface Size | 0.454 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.532 INCHES NOMINAL SECOND END IN |
| Style Designator | DOUBLE HEAD |
| Wrenching Surface Shape | OVAL 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 |
|---|---|
| BS 1/4X5/16 73110 | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| 3301025-7102 | 3/2 Design control — primary reference U.S. Government activity |
| BS 1/4X5/16 | 5/9 Secondary reference Metric and Multistandard Components Corp |
NSN 5120-01-228-8147 is a Wrench,open End, manufactured by Metric and Multistandard Components Corp, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-01-228-8147 has 1 manufacturer part number on file: BS 1/4X5/16 73110 (Metric and Multistandard Components Corp).
Key specifications for BS 1/4X5/16 73110: Wrenching Surface Size: 0.454 INCHES NOMINAL FIRST END IN; Wrenching Surface Size: 0.532 INCHES NOMINAL SECOND END IN; Style Designator: DOUBLE HEAD; Overall Length: 6.750 INCHES NOMINAL IN. 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.