The Kit,fitting, cataloged under National Stock Number 6640-01-446-9310, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc. The record lists 2 manufacturer part numbers 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 | Kit,fitting |
| FSC / FSG | 6640 — Laboratory Equipment and Supplies (FSG 66) |
| Manufacturers | Sigma Aldrich Co Ltd (CAGE K4466); Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc (CAGE 54968) |
| Parameter | Value |
|---|---|
| NSN | 6640-01-446-9310 |
| Primary Part Number | 5-8637 |
| Item Name | Kit,fitting |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
NSN 6640-01-446-9310 is a Kit,fitting, manufactured by Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-01-446-9310 has 2 manufacturer part numbers on file: 5-8637 (Sigma Aldrich Co Ltd), 5-8637 (Sigma-Aldrich, Inc. Dba Sigma-Aldrich Sales, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5835-01-502-9228. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). 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.