The Wrench,open End Box, cataloged under National Stock Number 5120-01-431-4956, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is S K Hand Tool Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-431-4956 |
| Primary Part Number | F2428 |
| Item Name | Wrench,open End Box |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | S K Hand Tool Corp |
| Status | ACTIVE |
| Style Designator | FLARE NUT DOUBLE END |
| Wrenching Surface Shape | 6 POINT BOTH ENDS INTERNAL |
| Material | STEEL OVERALL |
| Wrenching Surface Size | 0.875 INCHES NOMINAL SECOND END IN |
| Wrenching Surface Size | 0.750 INCHES NOMINAL FIRST END IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Specification/standard Data | 05047-ASME B107.100 CAT 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CHROMIUM OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| F2428 | S K Hand Tool Corp (USA) |
| B107.100 CAT 40 TY1 | General Services Administration Federal Supply Service (USA) |
| B107.100 | The American Society of Mechanical Engineers (USA) |
| B107.40 | The American Society of Mechanical Engineers (USA) |
| B107.40 TY1 | General Services Administration Federal Supply Service (USA) |
NSN 5120-01-431-4956 is a Wrench,open End Box, manufactured by S K Hand Tool Corp, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-431-4956 has 5 cross-referenced part numbers: F2428 (S K Hand Tool Corp), B107.100 CAT 40 TY1 (General Services Administration Federal Supply Service), B107.100 (The American Society of Mechanical Engineers), B107.40 (The American Society of Mechanical Engineers), B107.40 TY1 (General Services Administration Federal Supply Service).
There are 2 known substitutes for 5120-01-431-4956: 4520-01-068-5295, 6810-01-559-1053. Verify interchangeability with system specifications before substitution.
Key specifications for F2428: Style Designator: FLARE NUT DOUBLE END; Overall Length: 7.750 INCHES NOMINAL IN; Wrenching Surface Shape: 6 POINT BOTH ENDS INTERNAL; Material: STEEL OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.