The Elbow,pipe, cataloged under National Stock Number 4730-01-013-5756, 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 Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-013-5756 |
| Primary Part Number | 20000-1-1/4 |
| Item Name | Elbow,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 1.250 INCHES ALL ENDS IN |
| Connection Style | BEVELED (PIPE) ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Material Document and Classification | AISI 304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Leg Length | 1.875 INCHES NOMINAL ALL ENDS IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE 40 ALL ENDS |
| Material | STEEL COMP 304 OVERALL |
| 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 |
|---|---|
| 20000-1-1/4 | Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy (USA) |
| Reference | Meaning |
|---|---|
| 1701-1-1/4-304 | 5/9 Secondary reference U.S. Government activity |
| MSS SP-43 | 3/1 Design control — primary reference Manufacturers Standardization Society of the Valve and Fittings Industry Inc |
NSN 4730-01-013-5756 is a Elbow,pipe, manufactured by Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-013-5756 has 1 manufacturer part number on file: 20000-1-1/4 (Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-064-4561, 4730-01-155-0215. Verify interchangeability with system specifications before substitution.
Key specifications for 20000-1-1/4: Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 1.250 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Connection Type: BUTT WELD PIPE ALL ENDS. 8 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.