PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-D-321672Relay Assembly

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5945-00-346-1704 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-346-1704 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-346-1704. Primary manufacturer part number: SM-D-321672.
Features
  • Relay Assembly — FSC 5945
  • Surface Treatment: PAINT AND TIN MOUNTING
  • Mounting Facility: CONTAINER
  • Mounting Configuration: FOUR 0.164-32 IN. THD MTG STUDS ON 2.125 IN. BY 0.875 IN. MTG CENTERS IN
  • Identifying Number: 20303 DRAWING NO.
  • Individual Relay Quantity: 3
  • Controlling Agency: KLEINSCHMIDT LABS INC
  • 3 verified cross-references
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay Assembly, cataloged under National Stock Number 5945-00-346-1704, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 6 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-346-1704
Primary Part NumberSM-D-321672
Item NameRelay Assembly
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Surface TreatmentPAINT AND TIN MOUNTING
Mounting FacilityCONTAINER
Mounting ConfigurationFOUR 0.164-32 IN. THD MTG STUDS ON 2.125 IN. BY 0.875 IN. MTG CENTERS IN
Identifying Number20303 DRAWING NO.
Individual Relay Quantity3
Controlling AgencyKLEINSCHMIDT LABS INC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4140-00-136-9214476730 INTERCHANGEABLE
Guard,fan Impeller
Rotron Incorporated
3110-00-144-8542 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-6757G10531P11 INTERCHANGEABLE
Bearing,ball,annular
Siemens Energy, Inc.
3120-00-288-5914 INTERCHANGEABLE
Bearing,sleeve
4820-01-050-907620303 INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5365-01-165-262220303 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
6515-01-291-301120303 INTERCHANGEABLE
Clip,nose,spirometry
Vitalograph Inc
6240-01-463-5858 INTERCHANGEABLE
Lamp,fluorescent
5998-01-515-246320303 INTERCHANGEABLE
Holder,electrical Card
Acterna Llc Dba Jdsu
5120-01-601-562720303 INTERCHANGEABLE
Wrench,torque
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
SM-D-321672 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
PP-6261-1 Gte Communication Systems Corp (USA)
20303 Kleinschmidt Inc (USA)
Related Parts
4140-00-136-9214INTERCHANGEABLE
GUARD,FAN IMPELLER
476730
3110-00-144-8542INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-6757INTERCHANGEABLE
BEARING,BALL,ANNULAR
G10531P11
3120-00-288-5914INTERCHANGEABLE
BEARING,SLEEVE
4820-01-050-9076INTERCHANGEABLE
VALVE,SAFETY RELIEF
20303
5365-01-165-2622INTERCHANGEABLE
SHIM
20303
6515-01-291-3011INTERCHANGEABLE
CLIP,NOSE,SPIROMETRY
20303
6240-01-463-5858INTERCHANGEABLE
LAMP,FLUORESCENT
5998-01-515-2463INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
20303
5120-01-601-5627INTERCHANGEABLE
WRENCH,TORQUE
20303

Frequently Asked Questions

What is NSN 5945-00-346-1704?

NSN 5945-00-346-1704 is a Relay Assembly, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-346-1704?

NSN 5945-00-346-1704 has 3 cross-referenced part numbers: SM-D-321672 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), PP-6261-1 (Gte Communication Systems Corp), 20303 (Kleinschmidt Inc).

What NSN replaces 5945-00-346-1704?

There are 10 known substitutes for 5945-00-346-1704: 4140-00-136-9214, 3110-00-144-8542, 3110-00-156-6757 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-D-321672?

Key specifications for SM-D-321672: Surface Treatment: PAINT AND TIN MOUNTING; Overall Length: 2.688 INCHES NOMINAL IN; Overall Height: 2.562 INCHES NOMINAL IN; Overall Width: 1.812 INCHES NOMINAL IN. 9 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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