PartsTable TECHNICAL DATA SHEET

NSN 5945-01-331-9542Government record, cited

Relay, Solid State5945-01-331-9542

NSN 5945-01-331-9542 · NIIN 013319542 · Part number KR3DH

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 5945 — Relays and Solenoids · FSG 59 — Electrical and Electronic Equipment Components · CAGE 77445

Government record, cited

NSN 5945-01-331-9542 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-331-9542. Manufacturer of record part number: KR3DH.

Also searched as 5945-01-331-9542 · 5945013319542 · NIIN 013319542 · 01-331-9542 · FSC 5945 Relays and Solenoids · CAGE 77445 · KR3DH

Nearby stock numbers ← 5945-01-331-8638 Relay, Reed · 5945-01-331-9561 Relay, Electromagnetic →

Features

Relay,solid State — FSC 5945
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

Identification

NSN: 5945-01-331-9542
NIIN: 013319542
FSC: 5945 — Relays and Solenoids
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: KR3DH
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

General Description

The Relay,solid State, cataloged under National Stock Number 5945-01-331-9542, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Relay,solid State
FSC / FSG	5945 — Relays and Solenoids (FSG 59)
Manufacturers	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)

Technical Specifications

Parameter	Value
NSN	5945-01-331-9542
Primary Part Number	KR3DH
Item Name	Relay,solid State
FSC / FSG	5945 / 59 — Relays and Solenoids
Manufacturer	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

Cross-Reference Index

Part Number	Manufacturer
KR3DH PRIMARY	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)

Reference documents

Reference	Meaning
KR3DH	5/9 Secondary reference Potter and Brumfield Div Amf Canada Ltd

No interchangeability data on file.

Other items in FSC 5945 — Relays and Solenoids

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5945-00-000-0093

5945-00-000-0093 · Item name not on file

5945-00-001-1891

5945-00-001-1891 · Item name not on file

5945-00-001-2622

PLATE,RELAY

5945-00-001-2795

RELAY,ELECTROMAGNETIC

5945-00-001-2806

RELAY,REED

5945-00-001-2938

5945-00-001-2938 · Item name not on file

5945-00-001-3015

RELAY ASSEMBLY

5945-00-001-3016

PROTECTOR,OVERLOAD

Frequently Asked Questions

What is NSN 5945-01-331-9542?

NSN 5945-01-331-9542 is a Relay,solid State, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5945, Relays and Solenoids. Status: active.

What part numbers are listed for NSN 5945-01-331-9542?

NSN 5945-01-331-9542 has 1 manufacturer part number on file: KR3DH (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

Is NSN 5945-01-331-9542 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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