The Coupling,pipe, cataloged under National Stock Number 4730-00-277-2015, 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 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-277-2015 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE INSIDE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 2.150 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | PLAIN |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Specification/standard Data | 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 81348-WW-P-521 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 8 TABLE |
| Surface Treatment | ZINC OVERALL |
| Material | IRON MALLEABLE OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| 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 |
|---|---|
| B16.3 | 5/1 Secondary reference U.S. Government activity |
| WWP521 | 4/1 Identification reference U.S. Government activity |
| WWP521 | 5/9 Secondary reference Mindeco Corp |
NSN 4730-00-277-2015 is a Coupling,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-277-2015: Surface Treatment Document and Classification: ASTM A153 ASSN STD SINGLE TREATMENT RESPONSE INSIDE; Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 2.150 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 12 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.