The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-542-7439, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-01-542-7439 |
| Primary Part Number | 25-811 |
| Item Name | Wrench,box and Open End,combinat |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Armstrong Bros Tool Co |
| Status | ACTIVE |
| Wrenching Surface Size | 0.344 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | STRAIGHT |
| Head Angle | 15.0 DEGREES NOMINAL |
| Wrenching Surface Shape | OVAL FIRST END INTERNAL |
| Material | STEEL OVERALL |
| Features Provided | FULL POLISH |
| Wrenching Surface Shape | 12 POINT SECOND END INTERNAL |
| Surface Treatment | CHROMIUM OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5120-01-542-7439 is a Wrench,box and Open End,combinat, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-01-542-7439 has 3 cross-referenced part numbers: 25-811 (Armstrong Bros Tool Co), 25-811 (Apex Tool Group, Llc Dba Nicholson), 25-811 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.).
There are 3 known substitutes for 5120-01-542-7439: 2915-00-328-3285, 5930-01-035-5783, 3020-01-189-4727. Verify interchangeability with system specifications before substitution.
Key specifications for 25-811: Special Features: RATCHETING BOX END; Wrenching Surface Size: 0.344 INCHES NOMINAL BOTH ENDS IN; Style Designator: STRAIGHT; Head Angle: 15.0 DEGREES NOMINAL. 10 total characteristics are documented in the Federal Logistics Information System.