PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3900242Ring,retaining

Cummins Inc. · NSN 5325-01-320-1021 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-320-1021 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-320-1021. Primary manufacturer part number: 3900242.
Features
  • Ring,retaining — FSC 5325
  • 4 verified cross-references
  • Primary manufacturer: Cummins Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-320-1021, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. This item has 4 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.

Technical Specifications
ParameterValue
NSN5325-01-320-1021
Primary Part Number3900242
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5325-00-174-9885 INTERCHANGEABLE
Ring,retaining
1680-01-016-4678390024-2 INTERCHANGEABLE
Tank,water,aircraft
Teledyne Brown Engineering, Inc.
Cross-Reference Index
Part NumberManufacturer
3900242 PRIMARY Cummins Inc. (USA)
CBU1080 Leyland Trucks Ltd (for Spare Parts See U6425) (GBR)
4429242 Chrysler Corp Service and Parts Opns (USA)
5325PL0826163 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5325-00-174-9885INTERCHANGEABLE
RING,RETAINING
1680-01-016-4678INTERCHANGEABLE
TANK,WATER,AIRCRAFT
390024-2

Frequently Asked Questions

What is NSN 5325-01-320-1021?

NSN 5325-01-320-1021 is a Ring,retaining, manufactured by Cummins Inc., classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-320-1021?

NSN 5325-01-320-1021 has 4 cross-referenced part numbers: 3900242 (Cummins Inc.), CBU1080 (Leyland Trucks Ltd (for Spare Parts See U6425)), 4429242 (Chrysler Corp Service and Parts Opns), 5325PL0826163 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 5325-01-320-1021?

There are 2 known substitutes for 5325-01-320-1021: 5325-00-174-9885, 1680-01-016-4678. Verify interchangeability with system specifications before substitution.

What are the specifications of 3900242?

Key specifications for 3900242: End Item Identification: 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); 3990-01-444-5196 CEMENT MIXER. 1 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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