The Ring,welding,pipe Joint, cataloged under National Stock Number 3439-01-207-0699, 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 Babcock & Wilcox Co. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3439-01-207-0699 |
| Primary Part Number | H3157312 PIECE 765 |
| Item Name | Ring,welding,pipe Joint |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Nominal Size | 3.000 INCHES IN |
| Pipe/tubing Type for Which Designed | STANDARD WEIGHT |
| 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 |
|---|---|
| H3157312 PIECE 765 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| 3157312 | D/9 Drawing number reference only U.S. Government activity |
| H3157312 PIECE 765 | 5/2 Secondary reference U.S. Government activity |
| H3157312 PIECE 765 | 3/9 Design control — primary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
NSN 3439-01-207-0699 is a Ring,welding,pipe Joint, manufactured by Babcock & Wilcox Co, classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-01-207-0699 has 1 manufacturer part number on file: H3157312 PIECE 765 (Babcock & Wilcox Co).
Key specifications for H3157312 PIECE 765: Nominal Size: 3.000 INCHES IN; Pipe/tubing Type for Which Designed: STANDARD WEIGHT. 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.