The Expansion Joint,pipe, cataloged under National Stock Number 4730-01-048-5906, 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 Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-048-5906 |
| Primary Part Number | 55A005-5 |
| Item Name | Expansion Joint,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc |
| Status | ACTIVE |
| Nominal Pipe Size Designation | 3.500 INCHES IN |
| Design Type | SPOOL |
| End Connection Type | WELDED |
| Joint Type | DOUBLE |
| 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 |
|---|---|
| 55A005-5 PRIMARY | Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (USA) |
| Reference | Meaning |
|---|---|
| C7885-5 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 4730-01-048-5906 is a Expansion Joint,pipe, manufactured by Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-048-5906 has 1 manufacturer part number on file: 55A005-5 (Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc).
1 possible match (shared part number, not a government interchangeability claim): 3030-01-155-0238. Verify interchangeability with system specifications before substitution.
Key specifications for 55A005-5: Nominal Pipe Size Designation: 3.500 INCHES IN; Design Type: SPOOL; End Connection Type: WELDED; Overall Length: 1.900 INCHES MINIMUM AND 2.100 INCHES MAXIMUM IN. 4 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.