The Split Collar, cataloged under National Stock Number 4730-01-398-3983, 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 Haywardindl. Products, Inc.. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Split Collar |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Haywardindl. Products, Inc. (CAGE 73124) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-398-3983 |
| Primary Part Number | ST051040BFM005 PC NO 12 |
| Item Name | Split Collar |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| ST051040BFM001 PC. NO. 12 | Haywardindl. Products, Inc. (USA) |
| ST051040BFM005 PC NO 12 PRIMARY | Haywardindl. Products, Inc. (USA) |
| ST90651 PRIMARY | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ST051040BFM005 | D/9 Drawing number reference only Haywardindl. Products, Inc. |
| ST051040BFM001 | D/9 Drawing number reference only Haywardindl. Products, Inc. |
NSN 4730-01-398-3983 is a Split Collar, manufactured by Haywardindl. Products, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-398-3983 has 3 manufacturer part numbers on file: ST051040BFM001 PC. NO. 12 (Haywardindl. Products, Inc.), ST051040BFM005 PC NO 12 (Haywardindl. Products, Inc.), ST90651 (Haywardindl. Products, Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-398-4588, 4730-01-398-5753, 4730-01-400-3097. Verify interchangeability with system specifications before substitution.
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.