PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10855Relay,electromagnetic

American Telephone and Telegraph Co · NSN 5945-00-688-2549 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-688-2549 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-688-2549. Primary manufacturer part number: 10855.
Features
  • Relay,electromagnetic — FSC 5945
  • Terminal Type and Quantity: 6 PIN ALL FUNCTIONS
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Duty Type: CONTINUOUS
  • Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC RESISTIVE LOAD
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle: 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 110.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-688-2549, 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 American Telephone and Telegraph Co. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN5945-00-688-2549
Primary Part Number10855
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerAmerican Telephone and Telegraph Co
StatusACTIVE
Terminal Type and Quantity6 PIN ALL FUNCTIONS
Thread Class2A SINGLE MOUNTING FACILITY A
Duty TypeCONTINUOUS
Main Contact Load Current Rating at Maximum Rated Voltage1.0 AMPERES AC RESISTIVE LOAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp110.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Environmental ProtectionHERMETIC
Winding Quantity1
Pile-Up Main Contact Form Arrangement1A AND 1B A
Mounting Facility Type and Quantity3 THREADED STUD(S) SINGLE MOUNTING FACILITY
Nominal Thread Size0.138 INCHES SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6695-00-058-0899 INTERCHANGEABLE
Indicator,symbol Indicating
5315-00-187-3218MS24692-6 INTERCHANGEABLE
Pin,tapered,plain
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4931-00-348-84351085-5 INTERCHANGEABLE
Tool,clamp
Oetiker, Inc
2915-00-686-1236 INTERCHANGEABLE
Sleeve,thrust Pad
4730-00-900-0733S70 INTERCHANGEABLE
Nozzle,high Pressure
Strahman Valves Inc
4810-01-056-692324816 INTERCHANGEABLE
Filter Assembly
Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div
5305-01-394-7420933010045 INTERCHANGEABLE
Screw,cap,hexagon Head
Karl Senner, L.l.c. Dba Karl Senner Inc
5950-01-419-9348T235A429-4 INTERCHANGEABLE
Transformer,audio Frequency
Telephonics Corp
4730-01-528-8059SMK15-9/16UNF-VE INTERCHANGEABLE
Coupling Half,self-Sealing
Stauff Corp
4940-01-553-802710855 INTERCHANGEABLE
Heat Gun,electric
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
10855 American Telephone and Telegraph Co (USA)
10855 L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division (USA)
10855 Lucent Technologies Inc Dba Federal Marketing Group (USA)
10855 A T and T Tecnologies Inc Sub of American Telephone and Telegraph North Carolina Works
10855 Lucent Technologies Inc Corporate Headquarters (USA)
Related Parts
6695-00-058-0899INTERCHANGEABLE
INDICATOR,SYMBOL INDICATING
5315-00-187-3218INTERCHANGEABLE
PIN,TAPERED,PLAIN
MS24692-6
4931-00-348-8435INTERCHANGEABLE
TOOL,CLAMP
1085-5
2915-00-686-1236INTERCHANGEABLE
SLEEVE,THRUST PAD
4730-00-900-0733INTERCHANGEABLE
NOZZLE,HIGH PRESSURE
S70
4810-01-056-6923INTERCHANGEABLE
FILTER ASSEMBLY
24816
5305-01-394-7420INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
933010045
5950-01-419-9348INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
T235A429-4
4730-01-528-8059INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
SMK15-9/16UNF-VE
4940-01-553-8027INTERCHANGEABLE
HEAT GUN,ELECTRIC
10855
6530-01-572-4755INTERCHANGEABLE
CABINET,SOLUTION WARMING
EC230L
4730-01-652-4921INTERCHANGEABLE
NIPPLE,SPECIAL
10855

Frequently Asked Questions

What is NSN 5945-00-688-2549?

NSN 5945-00-688-2549 is a Relay,electromagnetic, manufactured by American Telephone and Telegraph Co, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-688-2549?

NSN 5945-00-688-2549 has 5 cross-referenced part numbers: 10855 (American Telephone and Telegraph Co), 10855 (L3 Technologies, Inc. Dba Insight Technology Division Div Insight Technology Division), 10855 (Lucent Technologies Inc Dba Federal Marketing Group), 10855 (A T and T Tecnologies Inc Sub of American Telephone and Telegraph North Carolina Works), 10855 (Lucent Technologies Inc Corporate Headquarters).

What NSN replaces 5945-00-688-2549?

There are 12 known substitutes for 5945-00-688-2549: 6695-00-058-0899, 5315-00-187-3218, 4931-00-348-8435 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10855?

Key specifications for 10855: Terminal Type and Quantity: 6 PIN ALL FUNCTIONS; Thread Class: 2A SINGLE MOUNTING FACILITY A; Duty Type: CONTINUOUS; Main Contact Load Current Rating at Maximum Rated Voltage: 1.0 AMPERES AC RESISTIVE LOAD. 18 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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