The Cup,oil,lubricating, cataloged under National Stock Number 4730-00-174-4518, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-174-4518 |
| Primary Part Number | 4B537 |
| Item Name | Cup,oil,lubricating |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Shank Diameter | 0.190 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Assembly Clearance Radius | 0.344 INCHES NOMINAL IN |
| Shank Length | 0.219 INCHES NOMINAL IN |
| Style Designator | STRAIGHT, HINGED CAP, W/SHOULDER |
| Height | 0.375 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 4B0537 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4B537 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| S3092 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 301 | 5/9 Secondary reference Apache Corp Gits Bros Mfg Co |
| P6182 | 5/9 Secondary reference Bomag Usa Sub of United Dominion Industries Ltd |
| 1204 | 5/9 Secondary reference Technology General Corporation Dba Clawson Machine Division Div Eclipse Systems |
NSN 4730-00-174-4518 is a Cup,oil,lubricating, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-174-4518 has 3 manufacturer part numbers on file: 4B0537 (Caterpillar Inc Div Caterpillar Defense), 4B537 (Caterpillar Inc Div Caterpillar Defense), S3092 (Cummins Inc.).
Key specifications for 4B537: Shank Diameter: 0.190 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN; Assembly Clearance Radius: 0.344 INCHES NOMINAL IN; Shank Length: 0.219 INCHES NOMINAL IN; Style Designator: STRAIGHT, HINGED CAP, W/SHOULDER. 7 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.