NSN 5985-01-372-6683 · NIIN 013726683 · Part number CSM-20M-3G
Merrimac Industries, Inc · FSC 5985 — Antennas, Waveguides, and Related Equipment · FSG 59 — Electrical and Electronic Equipment Components · CAGE 12457
Government record, cited
NSN 5985-01-372-6683 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-372-6683. Manufacturer of record part number: CSM-20M-3G.
Also searched as5985-01-372-6683 ·
5985013726683 ·
NIIN 013726683 ·
01-372-6683 ·
FSC 5985 Antennas, Waveguides, and Related Equipment · CAGE 12457 · CSM-20M-3G
Nearby stock numbers← 5985-01-372-6607 Control, Antenna
·
5985-01-372-6845 Switch, Radio Frequency Transmiss →
Features
Coupler,directional — FSC 5985
Power Loss in Decibels: 30.0
Design Type: UNIDIRECTIONAL
Radio Frequency Rating: 18.0 GIGAHERTZ MAXIMUM
Unit Type: WAVEGUIDE
1 manufacturer part number on file
Manufacturer of record: Merrimac Industries, Inc
Identification
NSN: 5985-01-372-6683
NIIN: 013726683
FSC: 5985 — Antennas, Waveguides, and Related Equipment
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: CSM-20M-3G
Manufacturer: Merrimac Industries, Inc
General Description
The Coupler,directional, cataloged under National Stock Number 5985-01-372-6683, is classified within Federal Supply Class 5985 (Antennas, Waveguides, and Related Equipment) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Merrimac Industries, Inc. Government technical data includes 4 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5985-01-372-6683
Primary Part Number
CSM-20M-3G
Item Name
Coupler,directional
FSC / FSG
5985 / 59 — Antennas, Waveguides, and Related Equipment
Manufacturer
Merrimac Industries, Inc
Status
ACTIVE
Power Loss in Decibels
30.0
Design Type
UNIDIRECTIONAL
Radio Frequency Rating
18.0 GIGAHERTZ MAXIMUM
Unit Type
WAVEGUIDE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5985 — Antennas, Waveguides, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5985-00-001-1854
ANTENNA
5985-00-001-1862
WAVEGUIDE ASSEMBLY
5985-00-001-1869
WAVEGUIDE ASSEMBLY
5985-00-001-1870
WAVEGUIDE ASSEMBLY
5985-00-001-1871
WAVEGUIDE ASSEMBLY
5985-00-001-1874
WAVEGUIDE ASSEMBLY
5985-00-001-1875
ADAPTER,WAVEGUIDE
5985-00-001-1876
WAVEGUIDE ASSEMBLY
Frequently Asked Questions
What is NSN 5985-01-372-6683?
NSN 5985-01-372-6683 is a Coupler,directional, manufactured by Merrimac Industries, Inc, classified under FSC 5985, Antennas, Waveguides, and Related Equipment. Status: active.
What part numbers are listed for NSN 5985-01-372-6683?
NSN 5985-01-372-6683 has 1 manufacturer part number on file: CSM-20M-3G (Merrimac Industries, Inc).
What are the specifications of CSM-20M-3G?
Key specifications for CSM-20M-3G: Power Loss in Decibels: 30.0; Design Type: UNIDIRECTIONAL; Radio Frequency Rating: 18.0 GIGAHERTZ MAXIMUM; Unit Type: WAVEGUIDE. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5985-01-372-6683 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.