The Cutter,milling,involute Gear, cataloged under National Stock Number 3455-00-239-5478, is classified within Federal Supply Class 3455 (Cutting Tools for Machine Tools) of the Metalworking Machinery (continued) group. The manufacturer of record is F & D Tool Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cutter,milling,involute Gear |
| FSC / FSG | 3455 — Cutting Tools for Machine Tools (FSG 34) |
| Manufacturers | F & D Tool Co Inc (CAGE 72295) |
| Parameter | Value |
|---|---|
| NSN | 3455-00-239-5478 |
| Primary Part Number | INVOLUTE 7-5 |
| Item Name | Cutter,milling,involute Gear |
| FSC / FSG | 3455 / 34 — Cutting Tools for Machine Tools |
| Manufacturer | F & D Tool Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| INVOLUTE 7-5 PRIMARY | F & D Tool Co Inc (USA) |
| Reference | Meaning |
|---|---|
| INVOLUTE 7-5 | 5/9 Secondary reference Lear Siegler Inc National Twist Drill and Tool Div |
| 735 | 5/9 Secondary reference Standard Tool Co Div of Lear Siegler Inc |
| ASME B94.19 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
| 7039110 | 5/9 Secondary reference Enco Mfg Co |
| GGG-C-755 | 5/9 Secondary reference U.S. Government activity |
| 821C-72 | 5/9 Secondary reference Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa |
| MS15701-189 | 5/9 Secondary reference U.S. Government activity |
| B94.19 TABLE 25 | 5/9 Secondary reference U.S. Government activity |
| INVOLUTE 7-5 | 5/9 Secondary reference Standard Tool Co Div of Lear Siegler Inc |
| 17804 | 5/9 Secondary reference Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa |
NSN 3455-00-239-5478 is a Cutter,milling,involute Gear, manufactured by F & D Tool Co Inc, classified under FSC 3455, Cutting Tools for Machine Tools. Status: active.
NSN 3455-00-239-5478 has 1 manufacturer part number on file: INVOLUTE 7-5 (F & D Tool Co Inc).
7 possible matches (shared part number, not a government interchangeability claim): 5325-00-281-4370, 5330-00-297-0289, 5310-01-118-6763. Verify interchangeability with system specifications before substitution.
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.