PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M2742630162BRing,retaining

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-01-506-2371 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-01-506-2371 — this item is cataloged by the U.S. Government under National Stock Number 5325-01-506-2371. Primary manufacturer part number: M2742630162B.
Features
  • Ring,retaining — FSC 5325
  • Inside Diameter: 3.815 INCHES NOMINAL IN
  • Material: STEEL
  • Casehardening Indicator: NOT CASEHARDENED
  • Major Thickness: 0.108 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: DOUBLE OVAL
  • Ring Style: SPECIAL FLAT
  • Outside Diameter: 4.002 INCHES MINIMUM AND 4.037 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-01-506-2371, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN5325-01-506-2371
Primary Part NumberM2742630162B
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 Diameter3.815 INCHES NOMINAL IN
MaterialSTEEL
Casehardening IndicatorNOT CASEHARDENED
Major Thickness0.108 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN
Cross-Sectional Shape StyleDOUBLE OVAL
Ring StyleSPECIAL FLAT
Outside Diameter4.002 INCHES MINIMUM AND 4.037 INCHES MAXIMUM IN
Usage DesignEXTERNAL
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
5325-01-487-3527 INTERCHANGEABLE
Ring,retaining
5325-01-491-4438 INTERCHANGEABLE
Ring,retaining
5325-01-499-2609 INTERCHANGEABLE
Ring,retaining
5325-01-504-0846 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
M2742630162B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M27426-3162B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-27426/3 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
5325-01-487-3527INTERCHANGEABLE
RING,RETAINING
5325-01-491-4438INTERCHANGEABLE
RING,RETAINING
5325-01-499-2609INTERCHANGEABLE
RING,RETAINING
5325-01-504-0846INTERCHANGEABLE
RING,RETAINING
5325-01-504-0848INTERCHANGEABLE
RING,RETAINING
5325-01-506-7453INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5325-01-506-2371?

NSN 5325-01-506-2371 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 5325-01-506-2371?

NSN 5325-01-506-2371 has 3 cross-referenced part numbers: M2742630162B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M27426-3162B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-27426/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5325-01-506-2371?

There are 12 known substitutes for 5325-01-506-2371: 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 M2742630162B?

Key specifications for M2742630162B: Inside Diameter: 3.815 INCHES NOMINAL IN; Material: STEEL; Casehardening Indicator: NOT CASEHARDENED; Major Thickness: 0.108 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN. 8 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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