The Wrench,open End, cataloged under National Stock Number 5120-00-049-9454, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is International Business Machines Corp Parts Order Center Dept E - 54. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-049-9454 |
| Primary Part Number | 9900266 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | International Business Machines Corp Parts Order Center Dept E - 54 |
| Status | ACTIVE |
| Large End Head Angle | 15.0 DEGREES NOMINAL |
| Large End Head Thickness | 0.040 INCHES NOMINAL IN |
| Small End Head Thickness | 0.040 INCHES NOMINAL IN |
| Small End Head Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Size | 0.125 INCHES NOMINAL FIRST END IN |
| Wrenching Surface Size | 0.156 INCHES NOMINAL SECOND END IN |
| Style Designator | THIN DOUBLE HEAD |
| Wrenching Surface Shape | OVAL BOTH ENDS INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Special Markings | 5/32 ON FIRST END, 1/8 ON SECOND END, 9900266 IN MIDDLE OF HANDLE IN |
| 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 |
|---|---|
| 9900111 | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| 9900266 PRIMARY | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| Reference | Meaning |
|---|---|
| 9900111 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
| 9900266 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 5120-00-049-9454 is a Wrench,open End, manufactured by International Business Machines Corp Parts Order Center Dept E - 54, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-049-9454 has 2 manufacturer part numbers on file: 9900111 (International Business Machines Corp Parts Order Center Dept E - 54), 9900266 (International Business Machines Corp Parts Order Center Dept E - 54).
2 possible matches (shared part number, not a government interchangeability claim): 4520-01-243-5612, 2815-01-321-5642. Verify interchangeability with system specifications before substitution.
Key specifications for 9900266: Large End Head Angle: 15.0 DEGREES NOMINAL; Large End Head Thickness: 0.040 INCHES NOMINAL IN; Small End Head Thickness: 0.040 INCHES NOMINAL 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.