The Bellows Assembly, cataloged under National Stock Number 4720-01-139-9867, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Senior Operations Llc Dba Metal Bellows Div Metal Bellows. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Bellows Assembly |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Senior Operations Llc Dba Metal Bellows Div Metal Bellows (CAGE 07649); Technetics Group Daytona, Inc. (CAGE 07582) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-139-9867 |
| Primary Part Number | 75286-3 |
| Item Name | Bellows Assembly |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Senior Operations Llc Dba Metal Bellows Div Metal Bellows |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 4720-01-139-9867 is a Bellows Assembly, manufactured by Senior Operations Llc Dba Metal Bellows Div Metal Bellows, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-139-9867 has 2 manufacturer part numbers on file: 75286-3 (Senior Operations Llc Dba Metal Bellows Div Metal Bellows), 34270A001 (Technetics Group Daytona, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 1560-01-238-2478. 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 4720-01-139-9867 has DEMIL Code Q. 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.