The Transit, cataloged under National Stock Number 6675-01-193-6581, is classified within Federal Supply Class 6675 (Drafting, Surveying, and Mapping Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6675-01-193-6581 |
| Item Name | Transit |
| FSC / FSG | 6675 / 66 — Drafting, Surveying, and Mapping Instruments |
| Status | ACTIVE |
| Effective Aperture Size | 1.300 INCHES NOMINAL IN |
| Tripod | NOT INCLUDED |
| Vertical Circle | NOT INCLUDED |
| Horizontal Circle Diameter | 4.600 INCHES NOMINAL IN |
| Focusing Type | EXTERNAL |
| Telescope Length | 7.670 INCHES NOMINAL IN |
| Stadia Hair | INCLUDED |
| Telescope Type | ERECTING |
| Horizontal Circle Vernier Quantity | 1 |
| Accessory Components and Quantity | MAGNIFIER,1; SCREWDRIVER,1; ADJUSTING WRENCH,1; PLUMB-BOB WITH HANGER,1; SUNSHADE,1; DUST CAP,1; RAIN COVER,1; ADJUSTING PINS |
| Diameter Magnifying Power | 24.0 NOMINAL |
| Illuminated Feature | NOT INCLUDED |
| Sighting Device Type | TELESCOPE |
| Compass | INCLUDED |
| Carrying Case | PROVIDED |
| Telescope Level Vial | INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| TT-400 | 3/9 Design control — primary reference Nikon Inc Instrument Div |
NSN 6675-01-193-6581 is a Transit, classified under FSC 6675, Drafting, Surveying, and Mapping Instruments. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3815-01-585-9524. Verify interchangeability with system specifications before substitution.
Key specifications for 6675-01-193-6581: Effective Aperture Size: 1.300 INCHES NOMINAL IN; Tripod: NOT INCLUDED; Vertical Circle: NOT INCLUDED; Horizontal Circle Diameter: 4.600 INCHES NOMINAL IN. 16 specifications are 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.