PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202-51Contact,electrical

Monitor Controller Co · NSN 5999-00-035-8709 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-035-8709 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-035-8709. Primary manufacturer part number: 202-51.
Features
  • Contact,electrical — FSC 5999
  • Unthreaded Mounting Hole Diameter: 0.531 INCHES NOMINAL IN
  • Terminal Type and Quantity: 1 PIN AXIALLY AT ONE END
  • Distance Between Mounting Facility Centers: 1.625 INCHES NOMINAL IN
  • Mounting Method: UNTHREADED HOLE(S)
  • Material: COPPER CONTACT
  • Material: COPPER BODY
  • Mounting Facility Quantity: 2
Applications
  • Applications requiring Copper Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-035-8709, 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 Monitor Controller Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-035-8709
Primary Part Number202-51
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerMonitor Controller Co
StatusACTIVE
Unthreaded Mounting Hole Diameter0.531 INCHES NOMINAL IN
Terminal Type and Quantity1 PIN AXIALLY AT ONE END
Distance Between Mounting Facility Centers1.625 INCHES NOMINAL IN
Mounting MethodUNTHREADED HOLE(S)
MaterialCOPPER CONTACT
MaterialCOPPER BODY
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.531 INCHES NOMINAL IN
Terminal Type and Quantity1 PIN AXIALLY AT ONE END
Distance Between Mounting Facility Centers1.625 INCHES NOMINAL IN
Mounting MethodUNTHREADED HOLE(S)
MaterialCOPPER CONTACT
MaterialCOPPER BODY
Mounting Facility Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 12
5315-00-027-202520251 INTERCHANGEABLE
Pin,straight,headless
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5315-00-198-5967103574 INTERCHANGEABLE
Pin,tapered,plain
Us Army Aviation and Missile Command
5340-00-351-35922025-1 INTERCHANGEABLE
Clip,spring Tension
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5325-00-351-5220202037 INTERCHANGEABLE
Ring,retaining
Kidde-Fenwal, Llc
2995-00-724-0151 INTERCHANGEABLE
Pilot,valve
5305-00-864-5721 INTERCHANGEABLE
Setscrew
5360-01-007-839303187003211 INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
8040-01-154-0038 INTERCHANGEABLE
Adhesive
5962-01-169-6663MC14025AL INTERCHANGEABLE
Microcircuit,digital
Freescale Semiconductor, Inc.
4820-01-174-899320251-3-926SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
202-51 Monitor Controller Co (USA)
Related Parts
5315-00-027-2025INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
20251
5315-00-198-5967INTERCHANGEABLE
PIN,TAPERED,PLAIN
103574
5340-00-351-3592INTERCHANGEABLE
CLIP,SPRING TENSION
2025-1
5325-00-351-5220INTERCHANGEABLE
RING,RETAINING
202037
2995-00-724-0151INTERCHANGEABLE
PILOT,VALVE
5305-00-864-5721INTERCHANGEABLE
SETSCREW
5360-01-007-8393INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
03187003211
8040-01-154-0038INTERCHANGEABLE
ADHESIVE
5962-01-169-6663INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
MC14025AL
4820-01-174-8993INTERCHANGEABLE
VALVE,SAFETY RELIEF
20251-3-926SS
4820-01-187-1970INTERCHANGEABLE
VALVE,SAFETY RELIEF
20251-8-926SS
4820-01-193-3462INTERCHANGEABLE
RING,REGULATING,VALVE
20251 PIECE 5

Frequently Asked Questions

What is NSN 5999-00-035-8709?

NSN 5999-00-035-8709 is a Contact,electrical, manufactured by Monitor Controller Co, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-035-8709?

NSN 5999-00-035-8709 has 1 cross-referenced part number: 202-51 (Monitor Controller Co).

What NSN replaces 5999-00-035-8709?

There are 12 known substitutes for 5999-00-035-8709: 5315-00-027-2025, 5315-00-198-5967, 5340-00-351-3592 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 202-51?

Key specifications for 202-51: Unthreaded Mounting Hole Diameter: 0.531 INCHES NOMINAL IN; Terminal Type and Quantity: 1 PIN AXIALLY AT ONE END; Distance Between Mounting Facility Centers: 1.625 INCHES NOMINAL IN; Mounting Method: UNTHREADED HOLE(S). 14 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