PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L901-4BACoupler,directional

Stellant Systems Inc · NSN 5985-00-156-0777 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-156-0777 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-156-0777. Primary manufacturer part number: L901-4BA.
Features
  • Coupler,directional — FSC 5985
  • Unit Type: TRANSMISSION LINE
  • Power Loss in Decibels: 10.0
  • 3 verified cross-references
  • Primary manufacturer: Stellant Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-00-156-0777, 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 Stellant Systems Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-156-0777
Primary Part NumberL901-4BA
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerStellant Systems Inc
StatusACTIVE
Unit TypeTRANSMISSION LINE
Power Loss in Decibels10.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-067-6665653171 INTERCHANGEABLE
Transformer,power
Cae Usa Inc.
5935-00-201-76323092 INTERCHANGEABLE
Connector,plug,electrical
Lockheed Martin Corporation Div Rms
5305-00-245-87773092 INTERCHANGEABLE
Screw,cap,socket Head
Kearflex Engineering Company
4730-00-277-9702 INTERCHANGEABLE
Elbow,drainage Pipe
5999-00-603-7294RCDX60-36D28 INTERCHANGEABLE
Contact,electrical
Souriau Usa, Inc. Dba Souriau Usa Inc
6135-00-643-3561467 INTERCHANGEABLE
Battery,nonrechargeable
Eveready Battery Co Inc
5945-00-802-8940 INTERCHANGEABLE
Relay,thermal
2930-00-822-13123092 INTERCHANGEABLE
Thermostat Assembly
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5950-00-891-21073092 INTERCHANGEABLE
Transformer,power
Sartron, Inc
6515-01-116-071733800 INTERCHANGEABLE
Catheter,tracheal
Cardinal Health 200, Llc
Cross-Reference Index
Part NumberManufacturer
3092 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
980059-01 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
L901-4BA PRIMARY Stellant Systems Inc (USA)
Related Parts
5950-00-067-6665INTERCHANGEABLE
TRANSFORMER,POWER
653171
5935-00-201-7632INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3092
5305-00-245-8777INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
3092
4730-00-277-9702INTERCHANGEABLE
ELBOW,DRAINAGE PIPE
5999-00-603-7294INTERCHANGEABLE
CONTACT,ELECTRICAL
RCDX60-36D28
6135-00-643-3561INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
467
5945-00-802-8940INTERCHANGEABLE
RELAY,THERMAL
2930-00-822-1312INTERCHANGEABLE
THERMOSTAT ASSEMBLY
3092
5950-00-891-2107INTERCHANGEABLE
TRANSFORMER,POWER
3092
6515-01-116-0717INTERCHANGEABLE
CATHETER,TRACHEAL
33800
3040-01-228-4348INTERCHANGEABLE
ADAPTER,SPEEDOMETER-TACHOMETER D
5305-01-539-7365INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
3092

Frequently Asked Questions

What is NSN 5985-00-156-0777?

NSN 5985-00-156-0777 is a Coupler,directional, manufactured by Stellant Systems Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-156-0777?

NSN 5985-00-156-0777 has 3 cross-referenced part numbers: 3092 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 980059-01 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), L901-4BA (Stellant Systems Inc).

What NSN replaces 5985-00-156-0777?

There are 12 known substitutes for 5985-00-156-0777: 5950-00-067-6665, 5935-00-201-7632, 5305-00-245-8777 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L901-4BA?

Key specifications for L901-4BA: Unit Type: TRANSMISSION LINE; Power Loss in Decibels: 10.0. 2 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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