The Elbow,pipe, cataloged under National Stock Number 4730-00-249-3960, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-249-3960 |
| Item Name | Elbow,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 4.500 INCHES ALL ENDS IN |
| Connection Style | BEVELED (PIPE) ALL ENDS |
| Connection Type | BUTT WELD PIPE ALL ENDS |
| Material Document and Classification | ASTM A234-59T,GR W+1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 750.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Leg Length | 6.750 INCHES NOMINAL ALL ENDS IN |
| Maximum Operating Temp | 454.0 CELSIUS FIRST RESPONSE DEGC |
| Maximum Operating Temp | 218.3 CELSIUS SECOND RESPONSE DEGC |
| Departure From Cited Document | AS MOD BY MATERIAL SPEC |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B16-9-1964 | 3/1 Design control — primary reference U.S. Government activity |
| 1385854REVB | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-00-249-3960 is a Elbow,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-00-249-3961, 4730-00-249-3965. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-249-3960: Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 4.500 INCHES ALL ENDS IN; Connection Style: BEVELED (PIPE) ALL ENDS; Connection Type: BUTT WELD PIPE ALL ENDS. 14 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.