PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1004Ring,retaining

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 5325-00-311-1803 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-311-1803 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-311-1803. Primary manufacturer part number: A1004.
Features
  • Ring,retaining — FSC 5325
  • 1 verified cross-reference
  • Primary manufacturer: Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-311-1803, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 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)
ManufacturersTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208)
Technical Specifications
ParameterValue
NSN5325-00-311-1803
Primary Part NumberA1004
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6635-00-018-583257A3073 INTERCHANGEABLE
Transducer,ultrasonic
Olympus America Inc
5915-00-057-33502271848 INTERCHANGEABLE
Filter,radio Frequency Interfere
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5340-00-161-1485A1004 INTERCHANGEABLE
Lever,manual Control
Eastern Co Div Eberhard Manufacturing
5305-00-313-6201 INTERCHANGEABLE
Screw,adjustment
5970-00-345-9701A1004 INTERCHANGEABLE
Insulator,disk
Kelly Manufacturing Company
5330-00-477-6117A100-4 INTERCHANGEABLE
Gasket
Curtiss-Wright Flow Control Corporation Dba Enertech Div Curtiss-Wright Flow Control
5315-00-769-6466232SP INTERCHANGEABLE
Pin,straight,headed
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5962-01-028-8017G390532-1 INTERCHANGEABLE
Microcircuit,linear
L3harris Technologies, Inc Div Space & Airborne Systems
5935-01-340-2719A1004 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Tektronix, Inc.
Cross-Reference Index
Part NumberManufacturer
A1004 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
6635-00-018-5832INTERCHANGEABLE
TRANSDUCER,ULTRASONIC
57A3073
5915-00-057-3350INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
2271848
5340-00-161-1485INTERCHANGEABLE
LEVER,MANUAL CONTROL
A1004
5305-00-313-6201INTERCHANGEABLE
SCREW,ADJUSTMENT
5970-00-345-9701INTERCHANGEABLE
INSULATOR,DISK
A1004
5330-00-477-6117INTERCHANGEABLE
GASKET
A100-4
5315-00-769-6466INTERCHANGEABLE
PIN,STRAIGHT,HEADED
232SP
5962-01-028-8017INTERCHANGEABLE
MICROCIRCUIT,LINEAR
G390532-1
5935-01-340-2719INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
A1004

Frequently Asked Questions

What is NSN 5325-00-311-1803?

NSN 5325-00-311-1803 is a Ring,retaining, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-311-1803?

NSN 5325-00-311-1803 has 1 cross-referenced part number: A1004 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What NSN replaces 5325-00-311-1803?

There are 9 known substitutes for 5325-00-311-1803: 6635-00-018-5832, 5915-00-057-3350, 5340-00-161-1485 and 6 more. Verify interchangeability with system specifications before substitution.

Is NSN 5325-00-311-1803 still in active supply?

NSN 5325-00-311-1803 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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