The Bushing,pipe, cataloged under National Stock Number 4730-01-421-3437, 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 Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-421-3437 |
| Primary Part Number | 6957-199 |
| Item Name | Bushing,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-15726, COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | COPPER ALLOY 715 |
| 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 |
|---|---|
| 6957-199 | Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc (USA) |
| Reference | Meaning |
|---|---|
| 6957-199 | 5/9 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 77157199 | 3/9 Design control — primary reference W & O Supply Inc |
| 77157199 1 X 3/4 70/30 CUNI | 5/9 Secondary reference W & O Supply Inc |
| 77157199 1" X 3 | C/1 Advisory reference — outside the item-of-supply concept W & O Supply Inc |
NSN 4730-01-421-3437 is a Bushing,pipe, manufactured by Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-3437 has 1 manufacturer part number on file: 6957-199 (Lbc Aquisitions Llc Dba Lee Brass Div Lee Brass Foundry, Llc).
Key specifications for 6957-199: Material Document and Classification: MIL-C-15726, COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: MATERIAL COMPOSITION 70-30 COPPER NICKEL ALLOY; 1ST END 1 INCH NOMINAL PIPE SIZE; 2ND END 3/4 INCH NOMINAL PIPE SIZE;BOTH ENDS SOCKETWELD IN; Material: COPPER ALLOY 715. 2 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.