The Chuck,independent Jaw, cataloged under National Stock Number 3460-01-440-2955, is classified within Federal Supply Class 3460 (Machine Tool Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Methods and Machining Systems. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3460-01-440-2955 |
| Primary Part Number | 139808 |
| Item Name | Chuck,independent Jaw |
| FSC / FSG | 3460 / 34 — Machine Tool Accessories |
| Manufacturer | Methods and Machining Systems |
| Status | ACTIVE |
| Work Holding Location | EXTERNAL |
| Reversible Jaw | NOT PROVIDED |
| Obstructed Center Hole | NOT PROVIDED |
| Mounting Adapter | NOT REQUIRED |
| Rotary Table Design Feature | NOT PROVIDED |
| Jaw Quantity | 4 |
| Material | STEEL BODY |
| Maximum Material Diameter Accommodated | 12.000 INCHES IN |
| 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 |
|---|---|
| 139808 PRIMARY | Methods and Machining Systems (USA) |
| Reference | Meaning |
|---|---|
| KH320 | 5/9 Secondary reference Methods and Machining Systems |
NSN 3460-01-440-2955 is a Chuck,independent Jaw, manufactured by Methods and Machining Systems, classified under FSC 3460, Machine Tool Accessories. Status: active.
NSN 3460-01-440-2955 has 1 manufacturer part number on file: 139808 (Methods and Machining Systems).
Key specifications for 139808: Work Holding Location: EXTERNAL; Reversible Jaw: NOT PROVIDED; Obstructed Center Hole: NOT PROVIDED; Mounting Adapter: NOT REQUIRED. 8 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.