The Wrench,open End, cataloged under National Stock Number 5120-00-992-4096, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is Telemechanics Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5120-00-992-4096 |
| Primary Part Number | 154393 |
| Item Name | Wrench,open End |
| FSC / FSG | 5120 / 51 — Hand Tools, Nonedged, Nonpowered |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Large End Head Thickness | 0.084 INCHES NOMINAL IN |
| Small End Head Thickness | 0.084 INCHES NOMINAL IN |
| Wrenching Surface Size | 0.156 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | THIN DOUBLE HEAD |
| Wrenching Surface Shape | OVAL BOTH ENDS INTERNAL |
| Functional Description | USED ON TELETYPE AND FASCIMILE EQUIPMENT |
| 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 |
|---|---|
| 154393 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 154393 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5120-00-992-4096 is a Wrench,open End, manufactured by Telemechanics Inc, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
NSN 5120-00-992-4096 has 1 manufacturer part number on file: 154393 (Telemechanics Inc).
4 possible matches (shared part number, not a government interchangeability claim): 2990-01-025-9959, 5945-01-051-2224, 3020-01-227-5438. Verify interchangeability with system specifications before substitution.
Key specifications for 154393: Large End Head Thickness: 0.084 INCHES NOMINAL IN; Small End Head Thickness: 0.084 INCHES NOMINAL IN; Wrenching Surface Size: 0.156 INCHES NOMINAL BOTH ENDS IN; Style Designator: THIN DOUBLE HEAD. 7 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.