The Plug,pipe, cataloged under National Stock Number 4730-00-593-1966, 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 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-593-1966 |
| Primary Part Number | 2R2138 |
| Item Name | Plug,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Head Type | CORED |
| Drive End Style | RECESSED HEXAGON |
| Thread Direction | RIGHT-HAND EXTERNAL |
| Body Type | SOLID |
| Thread Class | 2A EXTERNAL A |
| Material | STEEL 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 |
|---|---|
| 69389 | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| 2R2138 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 11626A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 36402 | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
| Reference | Meaning |
|---|---|
| 23D08 | 5/9 Secondary reference Barber-Greene Co |
| 11626A | 5/9 Secondary reference Hercules Engine Co Inc |
| 104473 | 5/9 Secondary reference U.S. Government activity |
| 23D08 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| 503PQ | 5/9 Secondary reference Lisle Corp |
NSN 4730-00-593-1966 is a Plug,pipe, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-593-1966 has 4 manufacturer part numbers on file: 69389 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 2R2138 (Caterpillar Inc Div Caterpillar Defense), 11626A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 36402 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
7 possible matches (shared part number, not a government interchangeability claim): 3610-00-890-1011, 5930-01-172-9883, 5998-01-268-6201. Verify interchangeability with system specifications before substitution.
Key specifications for 2R2138: Head Type: CORED; Drive End Style: RECESSED HEXAGON; Thread Direction: RIGHT-HAND EXTERNAL; Body Type: SOLID. 6 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.