PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2898679-11Coupler,directional

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5985-01-276-2703 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-276-2703 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-276-2703. Primary manufacturer part number: 2898679-11.
Features
  • Coupler,directional — FSC 5985
  • Unit Type: COAXIAL LINE
  • Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING
  • Design Type: BIDIRECTIONAL
  • Radio Frequency Rating: 3.1 GIGAHERTZ MINIMUM AND 3.5 GIGAHERTZ MAXIMUM
  • FSC Application Data: COMMUNICATIONS EQUIPMENT
  • Power Loss in Decibels: 6.0
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-01-276-2703, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-276-2703
Primary Part Number2898679-11
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Unit TypeCOAXIAL LINE
Usage DesignMAIN LINE AND SECONDARY LINE TERMINAL FITTING
Design TypeBIDIRECTIONAL
Radio Frequency Rating3.1 GIGAHERTZ MINIMUM AND 3.5 GIGAHERTZ MAXIMUM
FSC Application DataCOMMUNICATIONS EQUIPMENT
Power Loss in Decibels6.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5930-00-073-363123405 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
4720-00-126-459023-405 INTERCHANGEABLE
Hose Assembly,nonmetallic
Erickson Corp
4140-00-489-867623405 INTERCHANGEABLE
Fan,circulating
Emcore Corporation Div Concord Division
4820-00-710-8116N23405 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
1650-01-182-9906323912 INTERCHANGEABLE
Filter Assembly,hydraulic Reserv
Donaldson Company, Inc.
5940-01-223-248729711 INTERCHANGEABLE
Terminal,lug
Te Connectivity Corporation
4140-01-257-1089 INTERCHANGEABLE
Impeller,fan,centrifugal
6520-01-594-196552667 INTERCHANGEABLE
Ringless System,dental Casting
Bego Usa Inc
Cross-Reference Index
Part NumberManufacturer
2898679-11 Merrimac Industries, Inc (USA)
2898679-11 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
C2MT-6-3G/64779 Merrimac Industries, Inc (USA)
23405 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
Related Parts
5930-00-073-3631INTERCHANGEABLE
SWITCH,FLOW
23405
4720-00-126-4590INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
23-405
4140-00-489-8676INTERCHANGEABLE
FAN,CIRCULATING
23405
4820-00-710-8116INTERCHANGEABLE
DISK,VALVE
N23405
1650-01-182-9906INTERCHANGEABLE
FILTER ASSEMBLY,HYDRAULIC RESERV
323912
5940-01-223-2487INTERCHANGEABLE
TERMINAL,LUG
29711
4140-01-257-1089INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
6520-01-594-1965INTERCHANGEABLE
RINGLESS SYSTEM,DENTAL CASTING
52667

Frequently Asked Questions

What is NSN 5985-01-276-2703?

NSN 5985-01-276-2703 is a Coupler,directional, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-276-2703?

NSN 5985-01-276-2703 has 4 cross-referenced part numbers: 2898679-11 (Merrimac Industries, Inc), 2898679-11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), C2MT-6-3G/64779 (Merrimac Industries, Inc), 23405 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq).

What NSN replaces 5985-01-276-2703?

There are 8 known substitutes for 5985-01-276-2703: 5930-00-073-3631, 4720-00-126-4590, 4140-00-489-8676 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2898679-11?

Key specifications for 2898679-11: Overall Height: 0.400 INCHES MAXIMUM IN; Unit Type: COAXIAL LINE; Usage Design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING; Overall Width: 1.290 INCHES MAXIMUM IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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