PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

82121Ring,retaining

Aggressive Hydraulics, Inc. · NSN 5325-01-461-3239 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-461-3239 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-461-3239. Primary manufacturer part number: 82121.
Features
  • Ring,retaining — FSC 5325
  • 2 verified cross-references
  • Primary manufacturer: Aggressive Hydraulics, Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-461-3239, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aggressive Hydraulics, Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 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)
ManufacturersAggressive Hydraulics, Inc. (CAGE 3QPM4); Benton Harbor Engineering Inc (CAGE 92852)
Technical Specifications
ParameterValue
NSN5325-01-461-3239
Primary Part Number82121
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerAggressive Hydraulics, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4720-01-011-458926513 INTERCHANGEABLE
Hose,preformed
Gates Corporation
6620-01-100-318182121 INTERCHANGEABLE
Gage,pressure,dial Indicating
Maxima Technologies & Systems Llc Dba Maxima Technologies/steward-Warner
2815-01-114-193850109800 INTERCHANGEABLE
Ring,piston
Hatz Diesel of America Inc
5975-01-115-58978212-1 INTERCHANGEABLE
Conduit,metal,flexible
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
1650-01-173-53198212-1 INTERCHANGEABLE
Piston,outer,valve Assembly
Goodrich Aerospace Canada Ltd
5360-01-358-791082121 INTERCHANGEABLE
Spring,helical,compression
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
6685-01-591-620782121 INTERCHANGEABLE
Gage,pressure,dial Indicating
Maxima Technologies & Systems Llc
5110-01-714-3679 INTERCHANGEABLE
Pliers,diagonal Cutting
Cross-Reference Index
Part NumberManufacturer
82121 Aggressive Hydraulics, Inc. (USA)
82121 Benton Harbor Engineering Inc (USA)
Related Parts
4720-01-011-4589INTERCHANGEABLE
HOSE,PREFORMED
26513
6620-01-100-3181INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
82121
2815-01-114-1938INTERCHANGEABLE
RING,PISTON
50109800
5975-01-115-5897INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
8212-1
1650-01-173-5319INTERCHANGEABLE
PISTON,OUTER,VALVE ASSEMBLY
8212-1
5360-01-358-7910INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
82121
6685-01-591-6207INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
82121
5110-01-714-3679INTERCHANGEABLE
PLIERS,DIAGONAL CUTTING

Frequently Asked Questions

What is NSN 5325-01-461-3239?

NSN 5325-01-461-3239 is a Ring,retaining, manufactured by Aggressive Hydraulics, Inc., classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-461-3239?

NSN 5325-01-461-3239 has 2 cross-referenced part numbers: 82121 (Aggressive Hydraulics, Inc.), 82121 (Benton Harbor Engineering Inc).

What NSN replaces 5325-01-461-3239?

There are 8 known substitutes for 5325-01-461-3239: 4720-01-011-4589, 6620-01-100-3181, 2815-01-114-1938 and 5 more. Verify interchangeability with system specifications before substitution.

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