PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-810Relay,hybrid

Te Connectivity Corporation · NSN 5945-01-499-8516 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-499-8516 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-499-8516. Primary manufacturer part number: 21-810.
Features
  • Relay,hybrid — FSC 5945
  • Voltage Rating: UNABLE TO DECODE
  • Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED AND SINGLE POLE, SINGLE THROW, NORMALLY OPEN
  • 4 verified cross-references
  • Primary manufacturer: Te Connectivity Corporation
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,hybrid, cataloged under National Stock Number 5945-01-499-8516, 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 Te Connectivity Corporation. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-499-8516
Primary Part Number21-810
Item NameRelay,hybrid
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Voltage RatingUNABLE TO DECODE
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY CLOSED AND SINGLE POLE, SINGLE THROW, NORMALLY OPEN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6685-00-143-4746PT109 INTERCHANGEABLE
Thermometer,self-Indicating
Sigma Products & Mfg
1560-00-244-471910742-2 INTERCHANGEABLE
Rib Assembly,wing T
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5325-00-818-252721810 INTERCHANGEABLE
Ring,retaining
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
3110-01-007-762621810 INTERCHANGEABLE
Ball,bearing
Mason Electric Co. Dba Mason Controls
5985-01-036-6214218-10 INTERCHANGEABLE
Attenuator,fixed
Cinch Connectivity Solutions Inc
5310-01-049-0471NW21810 INTERCHANGEABLE
Nut,plain,wing
Tld Wollard Llc
5961-01-169-6507 INTERCHANGEABLE
Transistor
5950-01-210-106921810 INTERCHANGEABLE
Reactor
Westerbeke Corporation
4720-01-374-413621810 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5315-01-632-7933107422 INTERCHANGEABLE
Key,woodruff
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
901SX Te Connectivity Corporation (USA)
21-810 PRIMARY Te Connectivity Corporation (USA)
107.42-2 Ward Leonard Ct Llc (USA)
27129 PC 8 Ward Leonard Ct Llc (USA)
Related Parts
6685-00-143-4746INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
PT109
1560-00-244-4719INTERCHANGEABLE
RIB ASSEMBLY,WING T
10742-2
5325-00-818-2527INTERCHANGEABLE
RING,RETAINING
21810
3110-01-007-7626INTERCHANGEABLE
BALL,BEARING
21810
5985-01-036-6214INTERCHANGEABLE
ATTENUATOR,FIXED
218-10
5310-01-049-0471INTERCHANGEABLE
NUT,PLAIN,WING
NW21810
5961-01-169-6507INTERCHANGEABLE
TRANSISTOR
5950-01-210-1069INTERCHANGEABLE
REACTOR
21810
4720-01-374-4136INTERCHANGEABLE
HOSE,PREFORMED
21810
5315-01-632-7933INTERCHANGEABLE
KEY,WOODRUFF
107422

Frequently Asked Questions

What is NSN 5945-01-499-8516?

NSN 5945-01-499-8516 is a Relay,hybrid, manufactured by Te Connectivity Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-499-8516?

NSN 5945-01-499-8516 has 4 cross-referenced part numbers: 901SX (Te Connectivity Corporation), 21-810 (Te Connectivity Corporation), 107.42-2 (Ward Leonard Ct Llc), 27129 PC 8 (Ward Leonard Ct Llc).

What NSN replaces 5945-01-499-8516?

There are 10 known substitutes for 5945-01-499-8516: 6685-00-143-4746, 1560-00-244-4719, 5325-00-818-2527 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-810?

Key specifications for 21-810: Special Features: SHOCKPROOF; Voltage Rating: UNABLE TO DECODE; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED AND SINGLE POLE, SINGLE THROW, NORMALLY OPEN. 3 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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