The Cutter Bit,tool Holder, cataloged under National Stock Number 3455-00-404-5841, is classified within Federal Supply Class 3455 (No Item Name Available) of the Metalworking Machinery (continued) 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 4 commercial cross-references from 2 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 | 3455-00-404-5841 |
| Primary Part Number | AR4-78B |
| Item Name | Cutter Bit,tool Holder |
| FSC / FSG | 3455 / 34 — No Item Name Available |
| Manufacturer | Armstrong Bros Tool Co |
| Status | ACTIVE |
| Shape | RECTANGULAR |
| Material | CARBIDE |
| Material Type for Which Designed | FERROUS METAL AND NONFERROUS METAL |
| Material Location | TIP |
| Edge Type | RIGHT HAND TURNING |
| Cutting Edge Finish | GROUND TO SHAPE |
| Unable to Decode | UNABLE TO DECODE |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3455-00-404-5841 is a Cutter Bit,tool Holder, manufactured by Armstrong Bros Tool Co, classified under FSC 3455 (No Item Name Available). Status: active.
NSN 3455-00-404-5841 has 4 cross-referenced part numbers: AR4-78B (Armstrong Bros Tool Co), AR4-370 (Armstrong Bros Tool Co), AR-4/883 (American Carbide Tool Co), 87-621 (Armstrong Bros Tool Co).
There are 2 known substitutes for 3455-00-404-5841: 3455-00-554-8699, 5935-01-017-3265. Verify interchangeability with system specifications before substitution.
Key specifications for AR4-78B: Overall Width: 0.250 INCHES NOMINAL IN; Shape: RECTANGULAR; Material: CARBIDE; Overall Length: 1.500 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.