The Wrench,box, cataloged under National Stock Number 5120-01-161-1901, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-161-1901 |
| Primary Part Number | B107.9 |
| Item Name | Wrench,box |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Style Designator | SHALLOW ANGULAR OFFSET DOUBLE HEAD |
| Wrenching End Offset Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Shape | 12 POINT BOTH ENDS INTERNAL |
| Nondefinitive Spec/std Data | 1 TYPE AND 2 CLASS |
| Large End Head Thickness | 8.9 MILLIMETERS MAXIMUM MM |
| Wrenching Surface Size | 10.0 MILLIMETERS NOMINAL FIRST END MM |
| Large End Outside Diameter | 19.9 MILLIMETERS MAXIMUM MM |
| Material | STEEL OVERALL |
| Specification/standard Data | 05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Wrenching Surface Size | 11.0 MILLIMETERS NOMINAL SECOND END MM |
| Small End Head Thickness | 8.6 MILLIMETERS MAXIMUM MM |
| Surface Treatment | CHROMIUM OVERALL |
| Small End Outside Diameter | 18.8 MILLIMETERS MAXIMUM MM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B107.9 | The American Society of Mechanical Engineers (USA) |
| B107.100 | The American Society of Mechanical Engineers (USA) |
| B107.9M | The American Society of Mechanical Engineers (USA) |
| B107.9 TY1CL2 | General Services Administration Federal Supply Service (USA) |
NSN 5120-01-161-1901 is a Wrench,box, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-161-1901 has 4 cross-referenced part numbers: B107.9 (The American Society of Mechanical Engineers), B107.100 (The American Society of Mechanical Engineers), B107.9M (The American Society of Mechanical Engineers), B107.9 TY1CL2 (General Services Administration Federal Supply Service).
There are 12 known substitutes for 5120-01-161-1901: 5120-00-184-8602, 5120-00-224-3154, 5120-00-228-9526 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B107.9: Overall Length: 123.0 MILLIMETERS MINIMUM AND 133.0 MILLIMETERS MAXIMUM MM; Style Designator: SHALLOW ANGULAR OFFSET DOUBLE HEAD; Wrenching End Offset Angle: 15.0 DEGREES NOMINAL; Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL. 14 total characteristics are documented in the Federal Logistics Information System.