The Fitting,lubrication, cataloged under National Stock Number 4730-01-625-0199, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Alemite, Llc Dba Skf Usa Inc.. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-625-0199 |
| Primary Part Number | 1641-B |
| Item Name | Fitting,lubrication |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Alemite, Llc Dba Skf Usa Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.3125 INCHES NOMINAL IN |
| Shank Length | 0.1875 INCHES NOMINAL IN |
| Style Designator | STRAIGHT |
| Nominal Thread Size | 0.25 INCHES IN |
| Height | 0.5469 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNF |
| Surface Treatment | ZINC BODY |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL BODY |
| 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 |
|---|---|
| 1641-B PRIMARY | Alemite, Llc Dba Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 1641-B | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-625-0199 is a Fitting,lubrication, manufactured by Alemite, Llc Dba Skf Usa Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-625-0199 has 1 manufacturer part number on file: 1641-B (Alemite, Llc Dba Skf Usa Inc.).
Key specifications for 1641-B: Width Across Flats: 0.3125 INCHES NOMINAL IN; Shank Length: 0.1875 INCHES NOMINAL IN; Style Designator: STRAIGHT; Nominal Thread Size: 0.25 INCHES IN. 10 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.