The Adapter Assembly,valve, cataloged under National Stock Number 4730-01-546-2480, 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 Willard Marine, Inc.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-01-546-2480 |
| Primary Part Number | 28903 |
| Item Name | Adapter Assembly,valve |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Willard Marine, Inc. |
| Status | CANCELLED |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Material | PLASTIC |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28903 | Willard Marine, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 690NSBVG | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-546-2480 is a Adapter Assembly,valve, manufactured by Willard Marine, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: cancelled.
NSN 4730-01-546-2480 has 1 manufacturer part number on file: 28903 (Willard Marine, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5925-01-566-1690. Verify interchangeability with system specifications before substitution.
Key specifications for 28903: Overall Diameter: 1.250 INCHES NOMINAL IN; Overall Length: 2.375 INCHES NOMINAL IN; Special Features: (INAVY) VALVE ASSEMBLY, BOAT;COLOR GRAY; Part Name Assigned by Controlling Agency: SHORT BOAT VALVE ASSY. 2 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.
NSN 4730-01-546-2480 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.