PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-27426/3Ring,retaining

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-01-487-3527 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-487-3527 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-487-3527. Primary manufacturer part number: MIL-DTL-27426/3.
Features
  • Ring,retaining — FSC 5325
  • Inside Diameter: 1.687 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: DOUBLE OVAL
  • Criticality Code Justification: AGAV
  • Material: STEEL COMP 1074
  • Material Document and Classification: FED STD 66, COMP 1074 FED STD SINGLE MATERIAL RESPONSE
  • Surface Treatment: PASSIVATE
  • Casehardening Indicator: NOT CASEHARDENED
Applications
  • Applications requiring Steel Comp 1074 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-487-3527, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5325-01-487-3527
Primary Part NumberMIL-DTL-27426/3
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Inside Diameter1.687 INCHES NOMINAL IN
Cross-Sectional Shape StyleDOUBLE OVAL
Criticality Code JustificationAGAV
MaterialSTEEL COMP 1074
Material Document and ClassificationFED STD 66, COMP 1074 FED STD SINGLE MATERIAL RESPONSE
Surface TreatmentPASSIVATE
Casehardening IndicatorNOT CASEHARDENED
Major Thickness0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
Ring StyleSPECIAL FLAT
Usage DesignINTERNAL
Outside Diameter1.768 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-045-1884 INTERCHANGEABLE
Ring,retaining
5325-00-059-3118 INTERCHANGEABLE
Ring,retaining
5325-01-069-9944WH-775-S02 INTERCHANGEABLE
Ring,retaining
Smalley Steel Ring Co.
5365-01-474-2415 INTERCHANGEABLE
Ring,retaining,airc
5365-01-474-2423 INTERCHANGEABLE
Ring,retaining,airc
5365-01-474-2697 INTERCHANGEABLE
Ring,retaining,airc
5325-01-491-4438 INTERCHANGEABLE
Ring,retaining
5325-01-499-2609 INTERCHANGEABLE
Ring,retaining
5325-01-504-0846 INTERCHANGEABLE
Ring,retaining
5325-01-504-0848 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-27426/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27426-3143D General Electric Company Dba Ge Aerospace (USA)
M37426-3143D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5325-00-045-1884INTERCHANGEABLE
RING,RETAINING
5325-00-059-3118INTERCHANGEABLE
RING,RETAINING
5325-01-069-9944INTERCHANGEABLE
RING,RETAINING
WH-775-S02
5365-01-474-2415INTERCHANGEABLE
RING,RETAINING,AIRC
5365-01-474-2423INTERCHANGEABLE
RING,RETAINING,AIRC
5365-01-474-2697INTERCHANGEABLE
RING,RETAINING,AIRC
5325-01-491-4438INTERCHANGEABLE
RING,RETAINING
5325-01-499-2609INTERCHANGEABLE
RING,RETAINING
5325-01-504-0846INTERCHANGEABLE
RING,RETAINING
5325-01-504-0848INTERCHANGEABLE
RING,RETAINING
5325-01-506-2371INTERCHANGEABLE
RING,RETAINING
5325-01-506-7453INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-01-487-3527?

NSN 5325-01-487-3527 is a Ring,retaining, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5325 (No Item Name Available). Status: active.

What are the part numbers for NSN 5325-01-487-3527?

NSN 5325-01-487-3527 has 3 cross-referenced part numbers: MIL-DTL-27426/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27426-3143D (General Electric Company Dba Ge Aerospace), M37426-3143D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5325-01-487-3527?

There are 12 known substitutes for 5325-01-487-3527: 5325-00-045-1884, 5325-00-059-3118, 5325-01-069-9944 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-27426/3?

Key specifications for MIL-DTL-27426/3: Inside Diameter: 1.687 INCHES NOMINAL IN; Cross-Sectional Shape Style: DOUBLE OVAL; Criticality Code Justification: AGAV; Material: STEEL COMP 1074. 12 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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