The Wye,quick Disconnect, cataloged under National Stock Number 4730-01-372-4634, 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 Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Wye,quick Disconnect |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc (CAGE 78673) |
| Parameter | Value |
|---|---|
| NSN | 4730-01-372-4634 |
| Primary Part Number | 99-538 |
| Item Name | Wye,quick Disconnect |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 99-538 PRIMARY | Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc (USA) |
NSN 4730-01-372-4634 is a Wye,quick Disconnect, manufactured by Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-372-4634 has 1 manufacturer part number on file: 99-538 (Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6632-01-538-0883. 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.