The Bobbin,sewing Machine, cataloged under National Stock Number 3530-01-261-0044, is classified within Federal Supply Class 3530 (Industrial Sewing Machines and Mobile Textile Repair Shops) of the Service and Trade Equipment group. The manufacturer of record is Singer Industrial Sewing Products Co Cutters Exchange Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3530-01-261-0044 |
| Primary Part Number | 55623 |
| Item Name | Bobbin,sewing Machine |
| FSC / FSG | 3530 / 35 — Industrial Sewing Machines and Mobile Textile Repair Shops |
| Manufacturer | Singer Industrial Sewing Products Co Cutters Exchange Div |
| 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 |
NSN 3530-01-261-0044 is a Bobbin,sewing Machine, manufactured by Singer Industrial Sewing Products Co Cutters Exchange Div, classified under FSC 3530, Industrial Sewing Machines and Mobile Textile Repair Shops. Status: active.
NSN 3530-01-261-0044 has 2 manufacturer part numbers on file: 55623 (Singer Industrial Sewing Products Co Cutters Exchange Div), 55623 (Teamwork Sales, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-430-2679. Verify interchangeability with system specifications before substitution.
Key specifications for 55623: End Item Identification: SINGER CLASS 591D INDUSTRIAL SEWING MACHINE. 0 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.
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.