The Rod,welding, cataloged under National Stock Number 3439-00-252-8348, 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 American Welding Society, Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3439-00-252-8348 |
| Primary Part Number | AWSA5.7-77 RCUSN-A 0.156 |
| Item Name | Rod,welding |
| FSC / FSG | 3439 / 34 — Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories |
| Manufacturer | American Welding Society, Inc. |
| Status | ACTIVE |
| Length | 36.000 INCHES NOMINAL IN |
| Weld Position for Which Designed | HORIZONTAL |
| Material Document and Classification | AWSA5.7-77,CL RCUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER |
| Shape | ROUND |
| Outside Diameter | 0.156 INCHES NOMINAL IN |
| Process Type for Which Designed | GAS CARBON ARC OR GAS TUNGSTEN ARC |
| Physical Form | STRAIGHT |
| Material | COPPER ALLOY FILLER |
| 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 |
|---|---|
| AWSA5.7-77 RCUSN-A 0.156 PRIMARY | American Welding Society, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AWS A5.7 | 3/1 Design control — primary reference American Welding Society, Inc. |
NSN 3439-00-252-8348 is a Rod,welding, manufactured by American Welding Society, Inc., classified under FSC 3439, Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories. Status: active.
NSN 3439-00-252-8348 has 1 manufacturer part number on file: AWSA5.7-77 RCUSN-A 0.156 (American Welding Society, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 3439-00-252-8350, 3439-00-255-8943, 3439-00-255-8944. Verify interchangeability with system specifications before substitution.
Key specifications for AWSA5.7-77 RCUSN-A 0.156: Length: 36.000 INCHES NOMINAL IN; Weld Position for Which Designed: HORIZONTAL; Material Document and Classification: AWSA5.7-77,CL RCUSN-A ASSN STD SINGLE MATERIAL RESPONSE FILLER; Shape: ROUND. 8 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.