The Union,pipe, cataloged under National Stock Number 4730-01-140-0053, 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 Swagelok Co. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-140-0053 |
| Primary Part Number | NY500-1-4 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END |
| Coupling Flange Shape | HEXAGONHEXAGON |
| Nominal Overall Length | 1.7500 INCHES1.7500 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.2500 INCHES FIRST END0.2500 INCHES FIRST END IN |
| Maximum Operating Temp | 200.0 CELSIUS SINGLE RESPONSE200.0 CELSIUS SINGLE RESPONSE DEGC |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | NPT FIRST ENDNPT FIRST END |
| 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 |
|---|---|
| NY500-1-4 PRIMARY | Swagelok Co (USA) |
| NY5-1MC-4 PRIMARY | Tylok International, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 50-012-21N504 | 1/2 Source control — Government-approved source U.S. Government activity |
| 50-012-21N502 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-140-0053 is a Union,pipe, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-140-0053 has 2 manufacturer part numbers on file: NY500-1-4 (Swagelok Co), NY5-1MC-4 (Tylok International, Inc.).
Key specifications for NY500-1-4: Connection Style: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END; Coupling Flange Shape: HEXAGONHEXAGON; Nominal Overall Length: 1.7500 INCHES1.7500 INCHES IN; Connection Type: THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END. 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.