The Reference Standard,physical Prop, cataloged under National Stock Number 6635-01-221-9268, is classified within Federal Supply Class 6635 (Physical Properties Testing and Inspection) of the Instruments and Laboratory Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Reference Standard,physical Prop |
| FSC / FSG | 6635 — Physical Properties Testing and Inspection (FSG 66) |
| Parameter | Value |
|---|---|
| NSN | 6635-01-221-9268 |
| Item Name | Reference Standard,physical Prop |
| FSC / FSG | 6635 / 66 — Physical Properties Testing and Inspection |
| 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 |
| Reference | Meaning |
|---|---|
| R-TBD-3729 | 5/9 Secondary reference The Boeing Company Div Legacy Am&m |
| 11B19000-001 | 3/9 Design control — primary reference The Boeing Company Dba Boeing |
NSN 6635-01-221-9268 is a Reference Standard,physical Prop, classified under FSC 6635, Physical Properties Testing and Inspection. Status: active.
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.