The Hub,body, cataloged under National Stock Number 3040-01-183-4803, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rexnord Industries Llc Div Stearns. Government technical data includes 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-183-4803 |
| Primary Part Number | 1680SN-1IN BORE 1/4X1/8 KEYWAY |
| Item Name | Hub,body |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rexnord Industries Llc Div Stearns |
| Status | ACTIVE |
| Hub Inside Diameter | 1.000 INCHES NOMINAL IN |
| Style Designator | SINGLE HUB W/ SECURING HOLE(S) |
| Material | STEEL |
| 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 |
|---|---|
| 1680SN-1IN BORE 1/4X1/8 KEYWAY PRIMARY | Rexnord Industries Llc Div Stearns (USA) |
| Reference | Meaning |
|---|---|
| 1680SN | C/1 Advisory reference — outside the item-of-supply concept Rexnord Industries Llc Div Stearns |
| 1680SN-1IN | C/1 Advisory reference — outside the item-of-supply concept Rexnord Industries Llc Div Stearns |
| C-259-99 | 5/1 Secondary reference Rexnord Industries Llc Div Stearns |
| N-1037-A PC53 1IN BORE 1/4X1/8KW | 5/9 Secondary reference Rexnord Industries Llc Div Stearns |
NSN 3040-01-183-4803 is a Hub,body, manufactured by Rexnord Industries Llc Div Stearns, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-183-4803 has 1 manufacturer part number on file: 1680SN-1IN BORE 1/4X1/8 KEYWAY (Rexnord Industries Llc Div Stearns).
Key specifications for 1680SN-1IN BORE 1/4X1/8 KEYWAY: Hub Inside Diameter: 1.000 INCHES NOMINAL IN; Style Designator: SINGLE HUB W/ SECURING HOLE(S); Special Features: ATTACHMENT METHOD:MACHINE SCREW;SECURING HOLE QTY:2;ANGLE BETWEEN CENTERLINES OF SECURING HOLES IN DEG:90.0 DEGS;O/A LENGTH:8.000 IN.NOM;SECURING HOLE SIZE:0.250-20 IN.UNC;FACE OF MAJOR CIRCUMFERENCE SERRATED TO GRIP DISC IN; Material: STEEL. 3 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.