The Ring,locking, cataloged under National Stock Number 4730-01-587-3973, 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 Concepts Nrec, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,locking |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Concepts Nrec, Llc (CAGE 0C770) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-587-3973 |
| Primary Part Number | 6673-TTMS-048 |
| Item Name | Ring,locking |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Concepts Nrec, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6673-TTMS-048 PRIMARY | Concepts Nrec, Llc (USA) |
| Reference | Meaning |
|---|---|
| 6673-TTMS-112 | D/9 Drawing number reference only Concepts Nrec, Llc |
NSN 4730-01-587-3973 is a Ring,locking, manufactured by Concepts Nrec, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-587-3973 has 1 manufacturer part number on file: 6673-TTMS-048 (Concepts Nrec, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5325-01-587-3978, 4140-01-587-3998. 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.
NSN 4730-01-587-3973 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.