PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST5M1272-002Retainer,electrical Relay

The Boeing Company Div Defense · NSN 5945-00-509-4924 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-509-4924 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-509-4924. Primary manufacturer part number: ST5M1272-002.
Features
  • Retainer,electrical Relay — FSC 5945
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Material Document and Classification: QQ-S-766,CL 302 FED SPEC SINGLE MATERIAL RESPONSE
  • Distance Between Mounting Facility Centers: 3.343 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Style Designator: RECTANGULAR PRISM
  • Unthreaded Mounting Hole Diameter: 0.201 INCHES MINIMUM AND 0.207 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
  • Material: STEEL
  • 3 verified cross-references
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
  • Applications requiring Steel construction
General Description

The Retainer,electrical Relay, cataloged under National Stock Number 5945-00-509-4924, 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 The Boeing Company Div Defense. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-509-4924
Primary Part NumberST5M1272-002
Item NameRetainer,electrical Relay
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Material Document and ClassificationQQ-S-766,CL 302 FED SPEC SINGLE MATERIAL RESPONSE
Distance Between Mounting Facility Centers3.343 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Style DesignatorRECTANGULAR PRISM
Unthreaded Mounting Hole Diameter0.201 INCHES MINIMUM AND 0.207 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-017-3742 INTERCHANGEABLE
Contact Positioner,terminal Crim
5310-00-440-9265 INTERCHANGEABLE
Washer,recessed
5950-00-728-3633 INTERCHANGEABLE
Coil,radio Frequency
5999-00-863-3749 INTERCHANGEABLE
Contact Assembly,electrical
5940-00-983-6988 INTERCHANGEABLE
Terminal Board
5305-01-042-4407022105-000 INTERCHANGEABLE
Screw,machine
Uifocus, Llc
5995-01-082-6214BE27451 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Haldex Brake Products Corporation
5340-01-152-962822105 INTERCHANGEABLE
Hardware Kit,electronic Equipmen
Motorola/codex Corp Sub of Motorola Inc
5310-01-260-322022105 INTERCHANGEABLE
Washer,flat
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5950-01-437-855822-105 INTERCHANGEABLE
Transformer,power
Palomar Products, Inc.
Cross-Reference Index
Part NumberManufacturer
ST5M1272-002 PRIMARY The Boeing Company Div Defense (USA)
CXT3837 Struthers-Dunn Inc (USA)
2210-5 Dri Relays Inc. Dba Dri Relays Inc (USA)
Related Parts
5120-00-017-3742INTERCHANGEABLE
CONTACT POSITIONER,TERMINAL CRIM
5310-00-440-9265INTERCHANGEABLE
WASHER,RECESSED
5950-00-728-3633INTERCHANGEABLE
COIL,RADIO FREQUENCY
5999-00-863-3749INTERCHANGEABLE
CONTACT ASSEMBLY,ELECTRICAL
5940-00-983-6988INTERCHANGEABLE
TERMINAL BOARD
5305-01-042-4407INTERCHANGEABLE
SCREW,MACHINE
022105-000
5995-01-082-6214INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
BE27451
5340-01-152-9628INTERCHANGEABLE
HARDWARE KIT,ELECTRONIC EQUIPMEN
22105
5310-01-260-3220INTERCHANGEABLE
WASHER,FLAT
22105
5950-01-437-8558INTERCHANGEABLE
TRANSFORMER,POWER
22-105
4820-01-483-5028INTERCHANGEABLE
DECK BOX OPERATOR,VALVE
B-832-22105-002
5330-01-484-8609INTERCHANGEABLE
GASKET
20115-1

Frequently Asked Questions

What is NSN 5945-00-509-4924?

NSN 5945-00-509-4924 is a Retainer,electrical Relay, manufactured by The Boeing Company Div Defense, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-509-4924?

NSN 5945-00-509-4924 has 3 cross-referenced part numbers: ST5M1272-002 (The Boeing Company Div Defense), CXT3837 (Struthers-Dunn Inc), 2210-5 (Dri Relays Inc. Dba Dri Relays Inc).

What NSN replaces 5945-00-509-4924?

There are 12 known substitutes for 5945-00-509-4924: 5120-00-017-3742, 5310-00-440-9265, 5950-00-728-3633 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ST5M1272-002?

Key specifications for ST5M1272-002: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Material Document and Classification: QQ-S-766,CL 302 FED SPEC SINGLE MATERIAL RESPONSE; Distance Between Mounting Facility Centers: 3.343 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Style Designator: RECTANGULAR PRISM. 10 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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