The Coupling,pipe, cataloged under National Stock Number 4730-00-151-6688, 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 Curtis-Toledo, Inc.. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-151-6688 |
| Primary Part Number | VA16BA |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Curtis-Toledo, Inc. |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 1.188 INCHES IN |
| Style Designator | PLAIN |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Surface Treatment | ZINC INSIDE |
| Material | STEEL 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 |
NSN 4730-00-151-6688 is a Coupling,pipe, manufactured by Curtis-Toledo, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-151-6688 has 2 manufacturer part numbers on file: VA16BA (Curtis-Toledo, Inc.), 4638K12 (Mcmaster-Carr Supply Co).
2 possible matches (shared part number, not a government interchangeability claim): 4720-00-421-9807, 5950-01-086-0038. Verify interchangeability with system specifications before substitution.
Key specifications for VA16BA: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Overall Length: 1.188 INCHES IN; Style Designator: PLAIN; Nominal Thread Size: 0.250 INCHES ALL ENDS IN. 7 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.