The Collimator,telescope, cataloged under National Stock Number 4931-01-331-9868, is classified within Federal Supply Class 4931 (Fire Control Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4931-01-331-9868 |
| Item Name | Collimator,telescope |
| FSC / FSG | 4931 / 49 — Fire Control Maintenance and Repair Shop Specialized Equipment |
| Status | ACTIVE |
| General Characteristics Item Description | 5IN. APERTURE COMBINES IN AN 18IN. INSTRUMENT A 26 3/8IN. OPTICAL SYSTEM;THE SHORT COUPLED DESIGN AND THE MIDSECTION EYEPIECE MAKE IT POSSIBLE FOR ONE OPERATOR,WHILE VIEWING THROUGH THE EYEPIECE,TO ADJUST ON OR MORE MIRRORS WITHOUT HELP IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D-652-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4931-01-331-9868 is a Collimator,telescope, classified under FSC 4931, Fire Control Maintenance and Repair Shop Specialized Equipment. Status: active.
Key specifications for 4931-01-331-9868: General Characteristics Item Description: 5IN. APERTURE COMBINES IN AN 18IN. INSTRUMENT A 26 3/8IN. OPTICAL SYSTEM;THE SHORT COUPLED DESIGN AND THE MIDSECTION EYEPIECE MAKE IT POSSIBLE FOR ONE OPERATOR,WHILE VIEWING THROUGH THE EYEPIECE,TO ADJUST ON OR MORE MIRRORS WITHOUT HELP IN; End Item Identification: ELECTRO OPT T/S TOOL KIT. 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.
NSN 4931-01-331-9868 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.