The Tee,tube, cataloged under National Stock Number 4730-00-374-2212, 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 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-374-2212 |
| Primary Part Number | 4B8757 |
| Item Name | Tee,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE (TUBE) FIRST END |
| Connection Style | INVERTED FLARE (TUBE) THIRD END |
| Connection Style | INVERTED FLARE (TUBE) SECOND END |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE THIRD END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Thread Pitch Diameters | +0.4055 TO 0.4093 INCHES FIRST END IN |
| Thread Pitch Diameters | +0.4055 TO 0.4093 INCHES SECOND END IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.312 INCHES THIRD END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Leg Length | 0.796 INCHES NOMINAL ALL ENDS IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.500 INCHES THIRD END IN |
| Seat Angle | 42.0 DEGREES ALL ENDS |
| Thread Class | 2B THIRD END |
| Thread Quantity Per Inch | 24 SECOND END |
| Thread Quantity Per Inch | 24 FIRST END |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNS FIRST END |
| Thread Series Designator | UNS SECOND END |
| Thread Series Designator | UNF THIRD END |
| 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 |
|---|---|
| A22227-13 | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| 4B8757 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 7034067 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| F4288 | 5/9 Secondary reference Federal Mogul Corp Sub Wagner Brake Moog Automotive Div |
| FC4288 | 5/9 Secondary reference Federal Mogul Corp Sub Wagner Brake Moog Automotive Div |
NSN 4730-00-374-2212 is a Tee,tube, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-374-2212 has 3 manufacturer part numbers on file: A22227-13 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 4B8757 (Caterpillar Inc Div Caterpillar Defense), 7034067 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 4B8757: Connection Style: INVERTED FLARE (TUBE) FIRST END; Connection Style: INVERTED FLARE (TUBE) THIRD END; Connection Style: INVERTED FLARE (TUBE) SECOND END; Connection Type: THREADED INTERNAL TUBE SECOND END. 24 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.