NSN 6675-00-684-1955 · NIIN 006841955 · Part number 258H9910139-1
Lockheed Martin Corporation Div Rotary and Mission Systems · FSC 6675 — Drafting, Surveying, and Mapping Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 38597
Government record, cited
NSN 6675-00-684-1955 — this item is cataloged by the U.S. Government under National Stock Number 6675-00-684-1955. Manufacturer of record part number: 258H9910139-1.
Also searched as6675-00-684-1955 ·
6675006841955 ·
NIIN 006841955 ·
00-684-1955 ·
FSC 6675 Drafting, Surveying, and Mapping Instruments · CAGE 38597 · 258H9910139-1 · MIL-T-14132
Graduation Unit on Horizontal/vertical Circle: DEGREES
Minimum Graduation: 1.000 DEGREES MICROMETER DRUM
Tripod: NOT INCLUDED
Telescope Length: 5.900 INCHES NOMINAL IN
Diameter Magnifying Power: 27.0 MINIMUM AND 33.0 MAXIMUM
Unit Type: DIRECTIONAL
Sighting Device Type: TELESCOPE
Identification
NSN: 6675-00-684-1955
NIIN: 006841955
FSC: 6675 — Drafting, Surveying, and Mapping Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 258H9910139-1
Manufacturer: Lockheed Martin Corporation Div Rotary and Mission Systems
General Description
The Theodolite,surveying, cataloged under National Stock Number 6675-00-684-1955, is classified within Federal Supply Class 6675 (Drafting, Surveying, and Mapping Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 7 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6675-00-684-1955
Primary Part Number
258H9910139-1
Item Name
Theodolite,surveying
FSC / FSG
6675 / 66 — Drafting, Surveying, and Mapping Instruments
Manufacturer
Lockheed Martin Corporation Div Rotary and Mission Systems
Status
ACTIVE
Graduation Unit on Horizontal/vertical Circle
DEGREES
Minimum Graduation
1.000 DEGREES MICROMETER DRUM
Tripod
NOT INCLUDED
Telescope Length
5.900 INCHES NOMINAL IN
Diameter Magnifying Power
27.0 MINIMUM AND 33.0 MAXIMUM
Unit Type
DIRECTIONAL
Sighting Device Type
TELESCOPE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6675-00-684-5171POSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)
6675-00-820-4575POSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)
6675-00-903-7661KE2SPECIALWITHMILGRADUATI0NSPOSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)Keuffel and Esser Co
6675-00-988-5225POSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)
6675-00-990-8748POSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)
6675-01-214-5667T2-75DEGPOSSIBLE MATCH
THEODOLITE,SURVEYING
Possible match (shared part number)Leica Geosystems Inc.
Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
Reference documents
Reference
Meaning
MIL-T-14132
4/1Identification reference
U.S. Government activity
Related Parts
6675-00-684-5171POSSIBLE MATCH
THEODOLITE,SURVEYING
6675-00-820-4575POSSIBLE MATCH
THEODOLITE,SURVEYING
6675-00-903-7661POSSIBLE MATCH
THEODOLITE,SURVEYING
KE2SPECIALWITHMILGRADUATI0NS
6675-00-988-5225POSSIBLE MATCH
THEODOLITE,SURVEYING
6675-00-990-8748POSSIBLE MATCH
THEODOLITE,SURVEYING
6675-01-214-5667POSSIBLE MATCH
THEODOLITE,SURVEYING
T2-75DEG
Frequently Asked Questions
What is NSN 6675-00-684-1955?
NSN 6675-00-684-1955 is a Theodolite,surveying, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 6675, Drafting, Surveying, and Mapping Instruments. Status: active.
What part numbers are listed for NSN 6675-00-684-1955?
NSN 6675-00-684-1955 has 1 manufacturer part number on file: 258H9910139-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
What NSN replaces 6675-00-684-1955?
6 possible matches (shared part number, not a government interchangeability claim): 6675-00-684-5171, 6675-00-820-4575, 6675-00-903-7661. Verify interchangeability with system specifications before substitution.
What are the specifications of 258H9910139-1?
Key specifications for 258H9910139-1: Graduation Unit on Horizontal/vertical Circle: DEGREES; Minimum Graduation: 1.000 DEGREES MICROMETER DRUM; Tripod: NOT INCLUDED; Telescope Length: 5.900 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6675-00-684-1955 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.