PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128C845H03Coupler,directional

Northrop Grumman Support Services Corp · NSN 5985-00-881-1553 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-881-1553 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-881-1553. Primary manufacturer part number: 128C845H03.
Features
  • Coupler,directional — FSC 5985
  • Usage Design: MAIN LINE TERMINAL FITTING
  • Terminal Fitting Controlling Agency: ASESA
  • Radio Frequency Rating: 0.95 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
  • Identifying Number: TERMINAL FITTING TYPE UG20A/U
  • Power Loss in Decibels: 30.0
  • Unit Type: TRANSMISSION LINE
  • Design Type: UNIDIRECTIONAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-00-881-1553, 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 Northrop Grumman Support Services Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-881-1553
Primary Part Number128C845H03
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Support Services Corp
StatusACTIVE
Usage DesignMAIN LINE TERMINAL FITTING
Terminal Fitting Controlling AgencyASESA
Radio Frequency Rating0.95 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
Identifying NumberTERMINAL FITTING TYPE UG20A/U
Power Loss in Decibels30.0
Unit TypeTRANSMISSION LINE
Design TypeUNIDIRECTIONAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2925-00-090-464039377 INTERCHANGEABLE
Plate,ignition
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5998-00-409-1318300230 INTERCHANGEABLE
Electronic Components Assembly
Dranetz Technologies Inc
5325-00-598-225226849 INTERCHANGEABLE
Ring,retaining
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5985-01-081-3958 INTERCHANGEABLE
Coupler,directional
5331-01-085-4532300230 INTERCHANGEABLE
O-Ring
Ships Machinery International, Inc.
5985-01-442-32013002-30 INTERCHANGEABLE
Coupler,directional
Stellant Systems Inc
4930-01-721-3203300.230 INTERCHANGEABLE
Stand Assembly,nozzle and Valve
West Electronics Inc
Cross-Reference Index
Part NumberManufacturer
91328978 Thales Sa (FRA)
10690806-4 Us Army Aviation and Missile Command (USA)
128C845H03 PRIMARY Northrop Grumman Support Services Corp (USA)
3002-30 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
128C845H03 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
26849 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
L4410-30 Telephonics Corp/prd Instruments (USA)
L4410-30 Peraton Inc (USA)
Related Parts
2925-00-090-4640INTERCHANGEABLE
PLATE,IGNITION
39377
5998-00-409-1318INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
300230
5325-00-598-2252INTERCHANGEABLE
RING,RETAINING
26849
5985-01-081-3958INTERCHANGEABLE
COUPLER,DIRECTIONAL
5331-01-085-4532INTERCHANGEABLE
O-RING
300230
5985-01-442-3201INTERCHANGEABLE
COUPLER,DIRECTIONAL
3002-30
4930-01-721-3203INTERCHANGEABLE
STAND ASSEMBLY,NOZZLE AND VALVE
300.230

Frequently Asked Questions

What is NSN 5985-00-881-1553?

NSN 5985-00-881-1553 is a Coupler,directional, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-881-1553?

NSN 5985-00-881-1553 has 8 cross-referenced part numbers: 91328978 (Thales Sa), 10690806-4 (Us Army Aviation and Missile Command), 128C845H03 (Northrop Grumman Support Services Corp), 3002-30 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 128C845H03 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp) and 3 more.

What NSN replaces 5985-00-881-1553?

There are 7 known substitutes for 5985-00-881-1553: 2925-00-090-4640, 5998-00-409-1318, 5325-00-598-2252 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 128C845H03?

Key specifications for 128C845H03: Usage Design: MAIN LINE TERMINAL FITTING; Terminal Fitting Controlling Agency: ASESA; Radio Frequency Rating: 0.95 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM; Identifying Number: TERMINAL FITTING TYPE UG20A/U. 10 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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