PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61899Contact,electrical

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5999-00-312-3579 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-312-3579 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-312-3579. Primary manufacturer part number: 61899.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting Facility Quantity: 1
  • Material: COPPER ALLOY CONTACT
  • Surface Treatment: SILVER BODY
  • Style Designator: SOCKET CONTACT
  • Surface Treatment: SILVER CONTACT
  • Precious Material and Location: EXTERNAL SURFACE SILVER
Applications
  • Applications requiring Copper Alloy Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-312-3579, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 22 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-312-3579
Primary Part Number61899
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
MaterialCOPPER ALLOY CONTACT
Surface TreatmentSILVER BODY
Style DesignatorSOCKET CONTACT
Surface TreatmentSILVER CONTACT
Precious Material and LocationEXTERNAL SURFACE SILVER
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Precious MaterialSILVER
MaterialCOPPER ALLOY BODY
Unthreaded Mounting Hole Diameter0.010 INCHES NOMINAL IN
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity1
MaterialCOPPER ALLOY CONTACT
Surface TreatmentSILVER BODY
Style DesignatorSOCKET CONTACT
Surface TreatmentSILVER CONTACT
Precious Material and LocationEXTERNAL SURFACE SILVER
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Precious MaterialSILVER
MaterialCOPPER ALLOY BODY
Unthreaded Mounting Hole Diameter0.010 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Verified Substitutes 8
3110-00-100-0533 INTERCHANGEABLE
Cup,tapered Roller Bearing
2805-00-395-793761899 INTERCHANGEABLE
Manifold,e,haust Cy
Textron Lycoming Inc Williamsport Plant
1270-00-403-899261899 INTERCHANGEABLE
Safety Relief Fitti
Cadillac Gage Textron Inc.
5905-00-593-82281225783 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2990-01-201-28686189-9 INTERCHANGEABLE
Muffler,exhaust
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4330-01-447-34706189900 INTERCHANGEABLE
Filter Element,fluid
Alfa Laval Inc
4920-01-498-255461899 INTERCHANGEABLE
Gripper,deadman Bra
Products Support, Llc Dba Vitesse Systems - Jessup, Md
6110-01-666-5474 INTERCHANGEABLE
Contactor,magnetic
Cross-Reference Index
Part NumberManufacturer
61899 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
A61899 Arma Div Ambac Industries Inc
Related Parts
3110-00-100-0533INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2805-00-395-7937INTERCHANGEABLE
MANIFOLD,E,HAUST CY
61899
1270-00-403-8992INTERCHANGEABLE
SAFETY RELIEF FITTI
61899
5905-00-593-8228INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
1225783
2990-01-201-2868INTERCHANGEABLE
MUFFLER,EXHAUST
6189-9
4330-01-447-3470INTERCHANGEABLE
FILTER ELEMENT,FLUID
6189900
4920-01-498-2554INTERCHANGEABLE
GRIPPER,DEADMAN BRA
61899
6110-01-666-5474INTERCHANGEABLE
CONTACTOR,MAGNETIC

Frequently Asked Questions

What is NSN 5999-00-312-3579?

NSN 5999-00-312-3579 is a Contact,electrical, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-312-3579?

NSN 5999-00-312-3579 has 2 cross-referenced part numbers: 61899 (Lockheed Martin Corporation Div Rms - Mitchel Field), A61899 (Arma Div Ambac Industries Inc).

What NSN replaces 5999-00-312-3579?

There are 8 known substitutes for 5999-00-312-3579: 3110-00-100-0533, 2805-00-395-7937, 1270-00-403-8992 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61899?

Key specifications for 61899: Mounting Method: UNTHREADED HOLE(S); Mounting Facility Quantity: 1; Material: COPPER ALLOY CONTACT; Surface Treatment: SILVER BODY. 28 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com