PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

266-00Ring,retaining

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 5325-01-265-1157 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-265-1157 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-265-1157. Primary manufacturer part number: 266-00.
Features
  • Ring,retaining — FSC 5325
  • 2 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-265-1157, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. This item has 2 commercial cross-references 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: Cancelled.

Catalog Facts
Item NameRing,retaining
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN5325-01-265-1157
Primary Part Number266-00
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4820-00-253-908726600 INTERCHANGEABLE
Valve Assembly
Hamilton Sundstrand Corporation
5930-00-572-380326600 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5950-00-607-617926600 INTERCHANGEABLE
Reactor
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
2520-00-710-6845055-55-2 INTERCHANGEABLE
Spider,universal Joint,vehicular
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
4820-01-016-485026600 INTERCHANGEABLE
Valve Assembly
Rogerson Aircraft Equipment Group
5950-01-094-273026600 INTERCHANGEABLE
Transformer Assembly
Exelis Inc.
5930-01-187-622912100-7 INTERCHANGEABLE
Switch,rotary
Shallco, Inc
Cross-Reference Index
Part NumberManufacturer
266 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
266-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4820-00-253-9087INTERCHANGEABLE
VALVE ASSEMBLY
26600
5930-00-572-3803INTERCHANGEABLE
SWITCH,FLOW
26600
5950-00-607-6179INTERCHANGEABLE
REACTOR
26600
2520-00-710-6845INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
055-55-2
4820-01-016-4850INTERCHANGEABLE
VALVE ASSEMBLY
26600
5950-01-094-2730INTERCHANGEABLE
TRANSFORMER ASSEMBLY
26600
5930-01-187-6229INTERCHANGEABLE
SWITCH,ROTARY
12100-7

Frequently Asked Questions

What is NSN 5325-01-265-1157?

NSN 5325-01-265-1157 is a Ring,retaining, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-01-265-1157?

NSN 5325-01-265-1157 has 2 cross-referenced part numbers: 266 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 266-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 5325-01-265-1157?

There are 7 known substitutes for 5325-01-265-1157: 4820-00-253-9087, 5930-00-572-3803, 5950-00-607-6179 and 4 more. Verify interchangeability with system specifications before substitution.

Is NSN 5325-01-265-1157 still in active supply?

NSN 5325-01-265-1157 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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