PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28040-0003 ITEM 81Ring,retaining

Marotta Controls Inc · NSN 5325-01-518-2045 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-518-2045 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-518-2045. Primary manufacturer part number: 28040-0003 ITEM 81.
Features
  • Ring,retaining — FSC 5325
  • 6 verified cross-references
  • Primary manufacturer: Marotta Controls Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-518-2045, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Marotta Controls Inc. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,retaining
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersMarotta Controls Inc (CAGE 99657); Naval Inventory Control Point Mechanicsburg (CAGE 03950); Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M (CAGE 96906); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349)
Technical Specifications
ParameterValue
NSN5325-01-518-2045
Primary Part Number28040-0003 ITEM 81
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMarotta Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-804-6855 INTERCHANGEABLE
Ring,retaining
5325-01-145-9357281743-0001ITEM81 INTERCHANGEABLE
Ring,retaining
Marotta Controls Inc
Cross-Reference Index
Part NumberManufacturer
28040-0003 ITEM 81 Marotta Controls Inc (USA)
MS16625-4037CP Naval Inventory Control Point Mechanicsburg (USA)
MS16625-4037CP Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS16625-4037 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
284060-0003 ITEM 81CP Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5325-00-804-6855INTERCHANGEABLE
RING,RETAINING
5325-01-145-9357INTERCHANGEABLE
RING,RETAINING
281743-0001ITEM81

Frequently Asked Questions

What is NSN 5325-01-518-2045?

NSN 5325-01-518-2045 is a Ring,retaining, manufactured by Marotta Controls Inc, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-518-2045?

NSN 5325-01-518-2045 has 6 cross-referenced part numbers: 28040-0003 ITEM 81 (Marotta Controls Inc), MS16625-4037CP (Naval Inventory Control Point Mechanicsburg), MS16625-4037CP (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS16625-4037 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5325-01-518-2045?

There are 2 known substitutes for 5325-01-518-2045: 5325-00-804-6855, 5325-01-145-9357. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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