The Reference Standard,physical Prop, cataloged under National Stock Number 6635-01-655-9554, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ray-Check Manufacturing, Inc.. 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 | 6635-01-655-9554 |
| Primary Part Number | RAY8-20-40MAG |
| Item Name | Reference Standard,physical Prop |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| Manufacturer | Ray-Check Manufacturing, Inc. |
| Status | ACTIVE |
| Material | MAGNESIUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RAY8-20-40MAG PRIMARY | Ray-Check Manufacturing, Inc. (USA) |
NSN 6635-01-655-9554 is a Reference Standard,physical Prop, manufactured by Ray-Check Manufacturing, Inc., classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
NSN 6635-01-655-9554 has 1 manufacturer part number on file: RAY8-20-40MAG (Ray-Check Manufacturing, Inc.).
Key specifications for RAY8-20-40MAG: Overall Height: 0.312 INCHES NOMINAL IN; Overall Length: 3.156 INCHES NOMINAL IN; Overall Width: 1.375 INCHES NOMINAL IN; Special Features: CONTAINS 3 EACH .006 WIDE SLOTS AT DEPTHS OF .008, .020, AND .040 INCHES IN. 1 specification is 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.