PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-551664-1Contact,electrical

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5999-01-037-0927 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-037-0927 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-037-0927. Primary manufacturer part number: SM-B-551664-1.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting Facility Quantity: 1
  • Surface Treatment: NICKEL BODY
  • Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE CONTACT
  • Material: COPPER ALLOY BODY
  • Surface Treatment: NICKEL CONTACT
  • Material: COPPER ALLOY CONTACT
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-037-0927, is classified within Federal Supply Class 5999 (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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-037-0927
Primary Part NumberSM-B-551664-1
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
Surface TreatmentNICKEL BODY
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE CONTACT
MaterialCOPPER ALLOY BODY
Surface TreatmentNICKEL CONTACT
MaterialCOPPER ALLOY CONTACT
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY
Style DesignatorFLAT BLADE CONTACT
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
Surface TreatmentNICKEL BODY
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE CONTACT
MaterialCOPPER ALLOY BODY
Surface TreatmentNICKEL CONTACT
MaterialCOPPER ALLOY CONTACT
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY
Style DesignatorFLAT BLADE CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5998-01-361-4028 (20741)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.0100 lbs
Cube0.0000 cu ft
Verified Substitutes 6
5998-01-361-402820741 SUCCESSOR
Circuit Card Assembly
Giga-Tronics Incorporated Dba Giga-Tronics
5940-00-204-7881192886PC5 INTERCHANGEABLE
Terminal,lug
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5977-00-396-153465239-16 INTERCHANGEABLE
Brush,electrical Contact
Itw Food Equipment Group Llc Dba Hobart Service
5365-00-585-545620741 INTERCHANGEABLE
Spacer,ring
Parker Hannifin Corporation Div Aerospace Group Headquarters
5305-00-687-762220741 INTERCHANGEABLE
Screw,machine
Cec Vibration Products, Llc Dba Cec Vibrations Products
5305-01-117-727320741 INTERCHANGEABLE
Screw Retainer
Brinkley Technology Group Llc Dba Hercules Manufacturing
Cross-Reference Index
Part NumberManufacturer
SM-B-551664-1 Avion Tool Corporation (USA)
SM-B-551664-1 Hickok Waekon Llc (USA)
SM-B-551664-1 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
2074-1 American Mechanical & Electronic Service Inc (USA)
Related Parts
SUCCESSOR 5998-01-361-4028 Circuit Card Assembly · 20741
5940-00-204-7881INTERCHANGEABLE
TERMINAL,LUG
192886PC5
5977-00-396-1534INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
65239-16
5365-00-585-5456INTERCHANGEABLE
SPACER,RING
20741
5305-00-687-7622INTERCHANGEABLE
SCREW,MACHINE
20741
5305-01-117-7273INTERCHANGEABLE
SCREW RETAINER
20741

Frequently Asked Questions

What is NSN 5999-01-037-0927?

NSN 5999-01-037-0927 is a Contact,electrical, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-037-0927?

NSN 5999-01-037-0927 has 4 cross-referenced part numbers: SM-B-551664-1 (Avion Tool Corporation), SM-B-551664-1 (Hickok Waekon Llc), SM-B-551664-1 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 2074-1 (American Mechanical & Electronic Service Inc).

What NSN replaces 5999-01-037-0927?

There are 6 known substitutes for 5999-01-037-0927: 5998-01-361-4028, 5940-00-204-7881, 5977-00-396-1534 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-551664-1?

Key specifications for SM-B-551664-1: Mounting Method: UNTHREADED HOLE(S); Mounting Facility Quantity: 1; Overall Length: 0.625 INCHES NOMINAL IN; Overall Width: 0.344 INCHES NOMINAL IN. 22 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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