The Ring,welding,pipe Joint, cataloged under National Stock Number 3439-01-144-3574, is classified within Federal Supply Class 3439 (Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories) of the Metalworking Machinery (continued) group. The manufacturer of record is Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3439-01-144-3574 |
| Primary Part Number | D-173-939 ITEM 480 |
| Item Name | Ring,welding,pipe Joint |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
| Status | ACTIVE |
| Nominal Size | 2.000 INCHES IN |
| Pipe/tubing Type for Which Designed | ANY ACCEPTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D-173-939 ITEM 480 PRIMARY | Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric (USA) |
| Reference | Meaning |
|---|---|
| D-173-939 REVB ITEM 480 472PCS | 5/9 Secondary reference Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric |
NSN 3439-01-144-3574 is a Ring,welding,pipe Joint, manufactured by Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-144-3574 has 1 manufacturer part number on file: D-173-939 ITEM 480 (Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric).
Key specifications for D-173-939 ITEM 480: Nominal Size: 2.000 INCHES IN; Pipe/tubing Type for Which Designed: ANY ACCEPTABLE. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.