PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7528Ring,retaining

Trelleborg Sealing Solutions Us, Inc. · NSN 5325-01-301-0507 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-301-0507 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-301-0507. Primary manufacturer part number: 7528.
Features
  • Ring,retaining — FSC 5325
  • 5 verified cross-references
  • Primary manufacturer: Trelleborg Sealing Solutions Us, Inc.
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-301-0507, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 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)
ManufacturersUlstein Bergen A/s (CAGE N0379); Trelleborg Sealing Solutions Us, Inc. (CAGE 09257); Trelleborg Ersmark Ab (CAGE S3531); Ulstein Usa Inc (CAGE 0JKF4); Trelleborg Ersmark Ab (CAGE A222N)
Technical Specifications
ParameterValue
NSN5325-01-301-0507
Primary Part Number7528
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTrelleborg Sealing Solutions Us, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2925-00-137-12007528 INTERCHANGEABLE
Link
Te Connectivity Corporation
3120-00-339-43483374626 INTERCHANGEABLE
Bearing,sleeve
Eaton Corporation Dba Airflex Div Div Airflex
4820-00-538-6884RD-5-3 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Mid-State Sales, Inc. Div Defense Products Group
5940-00-549-6581 INTERCHANGEABLE
Adapter,battery Terminal
1650-00-704-924611864 INTERCHANGEABLE
Stop,valve,hydrauli
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3030-00-728-5267170XL037 INTERCHANGEABLE
Belt,positive Drive
Gates Corporation
5985-00-729-5374601B INTERCHANGEABLE
Adapter,waveguide
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
4030-00-807-4107 INTERCHANGEABLE
Anchor,guy
6135-01-031-0862C18.1M-910A INTERCHANGEABLE
Battery,nonrechargeable
American National Standards Institute Incorporated Dba American National Standards Institute
4710-01-343-818732-2538 INTERCHANGEABLE
Vessel,desalination
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
11864 Ulstein Bergen A/s (NOR)
7528 PRIMARY Trelleborg Sealing Solutions Us, Inc. (USA)
7528 Trelleborg Ersmark Ab (SWE)
11864 Ulstein Usa Inc (USA)
7528 Trelleborg Ersmark Ab (SWE)
Related Parts
2925-00-137-1200INTERCHANGEABLE
LINK
7528
3120-00-339-4348INTERCHANGEABLE
BEARING,SLEEVE
3374626
4820-00-538-6884INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
RD-5-3
5940-00-549-6581INTERCHANGEABLE
ADAPTER,BATTERY TERMINAL
1650-00-704-9246INTERCHANGEABLE
STOP,VALVE,HYDRAULI
11864
3030-00-728-5267INTERCHANGEABLE
BELT,POSITIVE DRIVE
170XL037
5985-00-729-5374INTERCHANGEABLE
ADAPTER,WAVEGUIDE
601B
4030-00-807-4107INTERCHANGEABLE
ANCHOR,GUY
6135-01-031-0862INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
C18.1M-910A
4710-01-343-8187INTERCHANGEABLE
VESSEL,DESALINATION
32-2538
5315-01-440-6030INTERCHANGEABLE
KEY,MACHINE
5310-01-492-2534INTERCHANGEABLE
NUT,PLAIN,HEXAGON
7528

Frequently Asked Questions

What is NSN 5325-01-301-0507?

NSN 5325-01-301-0507 is a Ring,retaining, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-301-0507?

NSN 5325-01-301-0507 has 5 cross-referenced part numbers: 11864 (Ulstein Bergen A/s), 7528 (Trelleborg Sealing Solutions Us, Inc.), 7528 (Trelleborg Ersmark Ab), 11864 (Ulstein Usa Inc), 7528 (Trelleborg Ersmark Ab).

What NSN replaces 5325-01-301-0507?

There are 12 known substitutes for 5325-01-301-0507: 2925-00-137-1200, 3120-00-339-4348, 4820-00-538-6884 and 9 more. Verify interchangeability with system specifications before substitution.

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