PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3040-5Ring,retaining

Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana · NSN 5325-01-253-4543 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-253-4543 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-253-4543. Primary manufacturer part number: 3040-5.
Features
  • Ring,retaining — FSC 5325
  • Cross-Sectional Shape Style: RECTANGULAR
  • Outside Diameter: 0.366 INCHES MAXIMUM IN
  • Usage Design: INTERNAL
  • Surface Treatment: PASSIVATE
  • Material Document and Classification: ELGILOY, ELGIN NATIONAL INDUSTRIES INC MFR REF SINGLE MATERIAL RESPONSE
  • Material: COBALT ALLOY
  • Ring Style: STRAIGHT GAP
Applications
  • Applications requiring Cobalt Alloy construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-253-4543, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-253-4543
Primary Part Number3040-5
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerSps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Outside Diameter0.366 INCHES MAXIMUM IN
Usage DesignINTERNAL
Surface TreatmentPASSIVATE
Material Document and ClassificationELGILOY, ELGIN NATIONAL INDUSTRIES INC MFR REF SINGLE MATERIAL RESPONSE
MaterialCOBALT ALLOY
Ring StyleSTRAIGHT GAP
Casehardening IndicatorNOT CASEHARDENED
End Style90 DEGREE PARALLEL
Inside Diameter0.286 INCHES MINIMUM IN
Major Thickness0.020 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-156-8014 INTERCHANGEABLE
Bearing,ball,annular
5330-00-663-805224877 INTERCHANGEABLE
Gasket
Johnson Controls, Inc Div Building Efficiency
1620-01-196-408530405 INTERCHANGEABLE
Adapter
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5130-01-243-907330405 INTERCHANGEABLE
Handle,valve Plate
Little Beaver Inc
2910-01-299-047330405 INTERCHANGEABLE
Parts Kit,metering and Distribut
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6550-01-524-428730405-01 INTERCHANGEABLE
Test Kit,human Chorionic Gonadot
Biomerieux Inc
8030-01-680-2312 INTERCHANGEABLE
Corrosion Preventive Compound
Cross-Reference Index
Part NumberManufacturer
3040-5 PRIMARY Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana (USA)
3040-5 Howmet Global Fastening Systems Inc Div Torrance Operations (USA)
3040-5 PRIMARY Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
VA97-0059-001 Leonardo Uk Ltd (GBR)
3M1056A5 The Boeing Company Div Defense (USA)
Related Parts
3110-00-156-8014INTERCHANGEABLE
BEARING,BALL,ANNULAR
5330-00-663-8052INTERCHANGEABLE
GASKET
24877
1620-01-196-4085INTERCHANGEABLE
ADAPTER
30405
5130-01-243-9073INTERCHANGEABLE
HANDLE,VALVE PLATE
30405
2910-01-299-0473INTERCHANGEABLE
PARTS KIT,METERING AND DISTRIBUT
30405
6550-01-524-4287INTERCHANGEABLE
TEST KIT,HUMAN CHORIONIC GONADOT
30405-01
8030-01-680-2312INTERCHANGEABLE
CORROSION PREVENTIVE COMPOUND

Frequently Asked Questions

What is NSN 5325-01-253-4543?

NSN 5325-01-253-4543 is a Ring,retaining, manufactured by Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-253-4543?

NSN 5325-01-253-4543 has 5 cross-referenced part numbers: 3040-5 (Sps Technologies, Llc Dba Aerospace Fasteners Group Div Aerospace - Santa Ana), 3040-5 (Howmet Global Fastening Systems Inc Div Torrance Operations), 3040-5 (Howmet Global Fastening Systems Inc. Div Tridair Products), VA97-0059-001 (Leonardo Uk Ltd), 3M1056A5 (The Boeing Company Div Defense).

What NSN replaces 5325-01-253-4543?

There are 7 known substitutes for 5325-01-253-4543: 3110-00-156-8014, 5330-00-663-8052, 1620-01-196-4085 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3040-5?

Key specifications for 3040-5: Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.366 INCHES MAXIMUM IN; Usage Design: INTERNAL; Surface Treatment: PASSIVATE. 11 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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