PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC-B-70198Contact,electrical

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5999-00-322-5591 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-322-5591 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-322-5591. Primary manufacturer part number: SC-B-70198.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: THREADED STUD(S)
  • Overall Diameter: 0.172 INCHES NOMINAL IN
  • Precious Material and Weight: 0.005 SILVER GRAINS, TROY
  • Surface Treatment: SILVER BODY AND CONTACT
  • Surface Treatment Document and Classification: MIL-F-14072,-351 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT
  • Precious Material and Location: BODY AND CONTACT SURFACES SILVER
  • Material Document and Classification: QQ-B-626,COMPOSITION 22 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-322-5591, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-322-5591
Primary Part NumberSC-B-70198
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mounting MethodTHREADED STUD(S)
Overall Diameter0.172 INCHES NOMINAL IN
Precious Material and Weight0.005 SILVER GRAINS, TROY
Surface TreatmentSILVER BODY AND CONTACT
Surface Treatment Document and ClassificationMIL-F-14072,-351 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Material Document and ClassificationQQ-B-626,COMPOSITION 22 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
MaterialCOPPER ALLOY BODY
Style DesignatorCYLINDRICAL SHAPE
Precious MaterialSILVER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Thread Class2A A
Nominal Thread Size0.164 INCHES IN
Mounting Facility Quantity1
Mounting MethodTHREADED STUD(S)
Overall Diameter0.172 INCHES NOMINAL IN
Precious Material and Weight0.005 SILVER GRAINS, TROY
Surface TreatmentSILVER BODY AND CONTACT
Surface Treatment Document and ClassificationMIL-F-14072,-351 MIL SPEC SINGLE TREATMENT RESPONSE BODY AND CONTACT
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Material Document and ClassificationQQ-B-626,COMPOSITION 22 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
MaterialCOPPER ALLOY BODY
Style DesignatorCYLINDRICAL SHAPE
Precious MaterialSILVER
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Thread Class2A A
Nominal Thread Size0.164 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 4
7530-00-764-794255022 INTERCHANGEABLE
Chart,recording Instrument
Graphic Controls Acquisition Corp.
7040-00-986-2369 INTERCHANGEABLE
Housing,idler
4210-01-038-888328034 INTERCHANGEABLE
Actuator,manual
Tyco Fire Products Lp
4210-01-120-270855022 INTERCHANGEABLE
Cylinder and Valve
Tyco Fire Products Lp
Cross-Reference Index
Part NumberManufacturer
SC-B-70198 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
55022 Kleinschmidt Inc (USA)
Related Parts
7530-00-764-7942INTERCHANGEABLE
CHART,RECORDING INSTRUMENT
55022
7040-00-986-2369INTERCHANGEABLE
HOUSING,IDLER
4210-01-038-8883INTERCHANGEABLE
ACTUATOR,MANUAL
28034
4210-01-120-2708INTERCHANGEABLE
CYLINDER AND VALVE
55022

Frequently Asked Questions

What is NSN 5999-00-322-5591?

NSN 5999-00-322-5591 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 5999-00-322-5591?

NSN 5999-00-322-5591 has 2 cross-referenced part numbers: SC-B-70198 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 55022 (Kleinschmidt Inc).

What NSN replaces 5999-00-322-5591?

There are 4 known substitutes for 5999-00-322-5591: 7530-00-764-7942, 7040-00-986-2369, 4210-01-038-8883 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC-B-70198?

Key specifications for SC-B-70198: Mounting Method: THREADED STUD(S); Overall Diameter: 0.172 INCHES NOMINAL IN; Precious Material and Weight: 0.005 SILVER GRAINS, TROY; Surface Treatment: SILVER BODY AND CONTACT. 30 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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