PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

188285Ring,electrical Contact

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5977-00-503-9516 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-503-9516 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-503-9516. Primary manufacturer part number: 188285.
Features
  • Ring,electrical Contact — FSC 5977
  • Overall Diameter: 3.188 INCHES NOMINAL IN
  • Material: SILVER
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
Applications
  • Applications requiring Silver construction
General Description

The Ring,electrical Contact, cataloged under National Stock Number 5977-00-503-9516, is classified within Federal Supply Class 5977 (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 2 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-503-9516
Primary Part Number188285
Item NameRing,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Overall Diameter3.188 INCHES NOMINAL IN
MaterialSILVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-100-30792X6505A INTERCHANGEABLE
Cone and Rollers,tapered Roller
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
188285 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
3110-00-100-3079INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2X6505A

Frequently Asked Questions

What is NSN 5977-00-503-9516?

NSN 5977-00-503-9516 is a Ring,electrical Contact, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-503-9516?

NSN 5977-00-503-9516 has 1 cross-referenced part number: 188285 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5977-00-503-9516?

There is 1 known substitute for 5977-00-503-9516: 3110-00-100-3079. Verify interchangeability with system specifications before substitution.

What are the specifications of 188285?

Key specifications for 188285: Overall Diameter: 3.188 INCHES NOMINAL IN; Material: SILVER; Special Features: 0.234 IN. THK; CYLINDER SHAPE;LEAD MARK 11, LEAD 4.063 IN. LG; FSCAPPLICATION,GYRO COMPASS IN. 3 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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