The Orifice Set, cataloged under National Stock Number 6640-00-455-0641, is classified within Federal Supply Class 6640 (Laboratory Equipment and Supplies) of the Instruments and Laboratory Equipment group. The manufacturer of record is Emd Millipore Corp Dba Milliporesigma Div Emd Millipore Corporation. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6640-00-455-0641 |
| Primary Part Number | XX5000000 |
| Item Name | Orifice Set |
| FSC / FSG | 6640 / 66 — Laboratory Equipment and Supplies |
| Manufacturer | Emd Millipore Corp Dba Milliporesigma Div Emd Millipore Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | C/O 5 LIMITING ORIFICES WITH APPROX CAPACITIES OF 0.5,1.0,3.0,4.9 AND 10.0 LITERS PER MINUTE,STAINLESS STEEL W/PREFORMED O-RINGS,5/16-18 MALE STRAIGHT THREAD TO ACCOMMODATE OUTLET OF FILTER HOLDER,DIM. DATA,3/8 IN. DIA BY 3/8 IN. LG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| XX5000000 PRIMARY | Emd Millipore Corp Dba Milliporesigma Div Emd Millipore Corporation (USA) |
NSN 6640-00-455-0641 is a Orifice Set, manufactured by Emd Millipore Corp Dba Milliporesigma Div Emd Millipore Corporation, classified under FSC 6640, Laboratory Equipment and Supplies. Status: active.
NSN 6640-00-455-0641 has 1 manufacturer part number on file: XX5000000 (Emd Millipore Corp Dba Milliporesigma Div Emd Millipore Corporation).
Key specifications for XX5000000: General Characteristics Item Description: C/O 5 LIMITING ORIFICES WITH APPROX CAPACITIES OF 0.5,1.0,3.0,4.9 AND 10.0 LITERS PER MINUTE,STAINLESS STEEL W/PREFORMED O-RINGS,5/16-18 MALE STRAIGHT THREAD TO ACCOMMODATE OUTLET OF FILTER HOLDER,DIM. DATA,3/8 IN. DIA BY 3/8 IN. LG IN. 1 specification is documented in the U.S. Government catalog.
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.