The Bar,bucking,rivet, cataloged under National Stock Number 5120-00-596-4063, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Chief of Engineers Dept of Army. Government technical data includes 4 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5120-00-596-4063 |
| Primary Part Number | A1557-1 |
| Item Name | Bar,bucking,rivet |
| FSC / FSG | 5120 / 51 — No Item Name Available |
| Manufacturer | Chief of Engineers Dept of Army |
| Status | ACTIVE |
| Taper Length | 4.250 INCHES NOMINAL IN |
| Tool Style Designator | BB3 |
| Recess Diameter | 0.219 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | IX TYPE AND 1 SIZE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-B-920 TY9SZ1 | General Services Administration Federal Supply Service (USA) |
| MIL-B-920 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| A1557-1 PRIMARY | Chief of Engineers Dept of Army (USA) |
NSN 5120-00-596-4063 is a Bar,bucking,rivet, manufactured by Chief of Engineers Dept of Army, classified under FSC 5120 (No Item Name Available). Status: active.
NSN 5120-00-596-4063 has 3 cross-referenced part numbers: MIL-B-920 TY9SZ1 (General Services Administration Federal Supply Service), MIL-B-920 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A1557-1 (Chief of Engineers Dept of Army).
There are 12 known substitutes for 5120-00-596-4063: 5120-00-177-7050, 5120-00-240-2530, 5120-00-240-2532 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for A1557-1: Taper Length: 4.250 INCHES NOMINAL IN; Tool Style Designator: BB3; Recess Diameter: 0.219 INCHES NOMINAL IN; Nondefinitive Spec/std Data: IX TYPE AND 1 SIZE. 4 total characteristics are documented in the Federal Logistics Information System.