The Reamer,machine, cataloged under National Stock Number 3455-00-252-0041, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is Kennametal Inc. Div Kennametal Industrial Products Group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3455-00-252-0041 |
| Primary Part Number | 4004-2180 |
| Item Name | Reamer,machine |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | Kennametal Inc. Div Kennametal Industrial Products Group |
| Status | ACTIVE |
| Shank Diameter | 0.2065 INCHES MINIMUM AND 0.2075 INCHES MAXIMUM IN |
| Flute Design | STRAIGHT |
| Flute Cut Direction | RIGHT-HAND |
| Shank Type | STRAIGHT |
| Guide | NOT INCLUDED |
| Flute Length | 1.250 INCHES NOMINAL IN |
| Diameter | 0.218 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 2 CLASS AND A GRADE AND A STYLE AND X TYPE |
| Flute Type | INTEGRAL |
| Flute Quantity | 6 |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL CUTTING EDGE TIP |
| Reamer Type | FLUTED CHUCKING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4004-2180 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 4001/630-0.2180 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| 25436 | Kennametal Inc. Div Kennametal Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| ANSI B94.2-TABLE 13 | 5/1 Secondary reference The American Society of Mechanical Engineers |
| GGG-R-180D | 4/1 Identification reference U.S. Government activity |
| 25436 | 3/9 Design control — primary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 4004-2180 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
| 4001/630-0.2180 | 5/9 Secondary reference Cleveland Twist Drill Co Div of Greenfield Industries Inc |
NSN 3455-00-252-0041 is a Reamer,machine, manufactured by Kennametal Inc. Div Kennametal Industrial Products Group, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-00-252-0041 has 3 manufacturer part numbers on file: 4004-2180 (Kennametal Inc. Div Kennametal Industrial Products Group), 4001/630-0.2180 (Kennametal Inc. Div Kennametal Industrial Products Group), 25436 (Kennametal Inc. Div Kennametal Industrial Products Group).
4 possible matches (shared part number, not a government interchangeability claim): 5330-00-345-5168, 5340-00-382-8027, 5360-01-315-9735. Verify interchangeability with system specifications before substitution.
Key specifications for 4004-2180: Shank Diameter: 0.2065 INCHES MINIMUM AND 0.2075 INCHES MAXIMUM IN; Flute Design: STRAIGHT; Flute Cut Direction: RIGHT-HAND; Shank Type: STRAIGHT. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.