PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20143Ring,retaining

Lockheed Martin Corporation · NSN 5325-01-572-5809 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-572-5809 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-572-5809. Primary manufacturer part number: 20143.
Features
  • Ring,retaining — FSC 5325
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-572-5809, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-572-5809
Primary Part Number20143
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-115-625020-143 INTERCHANGEABLE
Screw,externally Relieved Body
General Dynamics Mission Systems, Inc. Dba Gdms
6240-00-143-3049 INTERCHANGEABLE
Lamp,incandescent
5315-00-447-65170120143 INTERCHANGEABLE
Pin
New Holland Construction
1680-01-047-0052182C0059 INTERCHANGEABLE
Cushion,seat,aircraft
Ganar Industries Llc
5985-01-060-0024 INTERCHANGEABLE
Line Section,radio Frequency Tra
2520-01-149-1051CP58WB HWD INTERCHANGEABLE
Spider,universal Joint,vehicular
Meritor Heavy Vehicle Systems, Llc
4920-01-300-202120143 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
Cross-Reference Index
Part NumberManufacturer
20143 PRIMARY Lockheed Martin Corporation (USA)
Related Parts
5305-00-115-6250INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
20-143
6240-00-143-3049INTERCHANGEABLE
LAMP,INCANDESCENT
5315-00-447-6517INTERCHANGEABLE
PIN
0120143
1680-01-047-0052INTERCHANGEABLE
CUSHION,SEAT,AIRCRAFT
182C0059
5985-01-060-0024INTERCHANGEABLE
LINE SECTION,RADIO FREQUENCY TRA
2520-01-149-1051INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
CP58WB HWD
4920-01-300-2021INTERCHANGEABLE
TEST PROGRAM SET
20143

Frequently Asked Questions

What is NSN 5325-01-572-5809?

NSN 5325-01-572-5809 is a Ring,retaining, manufactured by Lockheed Martin Corporation, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-572-5809?

NSN 5325-01-572-5809 has 1 cross-referenced part number: 20143 (Lockheed Martin Corporation).

What NSN replaces 5325-01-572-5809?

There are 7 known substitutes for 5325-01-572-5809: 5305-00-115-6250, 6240-00-143-3049, 5315-00-447-6517 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20143?

Key specifications for 20143: Part Name Assigned by Controlling Agency: RING,RETAINING; End Item Identification: U-2. 2 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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