PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

400-173Relay,electromagnetic

Altec Air, Llc Dba Altec Llc · NSN 5945-00-977-1256 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-977-1256 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-977-1256. Primary manufacturer part number: 400-173.
Features
  • Relay,electromagnetic — FSC 5945
  • Coil Quantity: 1
  • Winding Quantity: 1
  • 2 verified cross-references
  • Primary manufacturer: Altec Air, Llc Dba Altec Llc
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-977-1256, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Altec Air, Llc Dba Altec Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-977-1256
Primary Part Number400-173
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAltec Air, Llc Dba Altec Llc
StatusACTIVE
Coil Quantity1
Winding Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5935-00-086-7079SMC43677 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4820-00-157-05493229-3001-5 INTERCHANGEABLE
Spool Assembly
Kidde Fire Fighting, Inc. Div National Foam
5998-00-411-0417 INTERCHANGEABLE
Circuit Card Assembly
5310-00-517-5193124D87 INTERCHANGEABLE
Nut,sleeve
Curtiss-Wright Controls, Inc. Div Actuation Division
6510-01-093-8022 INTERCHANGEABLE
Sponge,surgical
5130-01-299-16752002-15 INTERCHANGEABLE
Tool Kit,impact Wre
Aircraft Dynamics Corp
4730-01-315-8176 INTERCHANGEABLE
Clamp,hose
6515-01-375-9948 INTERCHANGEABLE
Needle,hypodermic
5985-01-433-4732ATT-0291-03-024-02 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
Cross-Reference Index
Part NumberManufacturer
400-173 PRIMARY Altec Air, Llc Dba Altec Llc (USA)
200-215 PRIMARY Altec Air, Llc Dba Altec Llc (USA)
Related Parts
5935-00-086-7079INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
SMC43677
4820-00-157-0549INTERCHANGEABLE
SPOOL ASSEMBLY
3229-3001-5
5998-00-411-0417INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5310-00-517-5193INTERCHANGEABLE
NUT,SLEEVE
124D87
6510-01-093-8022INTERCHANGEABLE
SPONGE,SURGICAL
5130-01-299-1675INTERCHANGEABLE
TOOL KIT,IMPACT WRE
2002-15
4730-01-315-8176INTERCHANGEABLE
CLAMP,HOSE
6515-01-375-9948INTERCHANGEABLE
NEEDLE,HYPODERMIC
5985-01-433-4732INTERCHANGEABLE
ATTENUATOR,FIXED
ATT-0291-03-024-02

Frequently Asked Questions

What is NSN 5945-00-977-1256?

NSN 5945-00-977-1256 is a Relay,electromagnetic, manufactured by Altec Air, Llc Dba Altec Llc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-977-1256?

NSN 5945-00-977-1256 has 2 cross-referenced part numbers: 400-173 (Altec Air, Llc Dba Altec Llc), 200-215 (Altec Air, Llc Dba Altec Llc).

What NSN replaces 5945-00-977-1256?

There are 9 known substitutes for 5945-00-977-1256: 5935-00-086-7079, 4820-00-157-0549, 5998-00-411-0417 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 400-173?

Key specifications for 400-173: Coil Quantity: 1; Winding Quantity: 1. 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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