Product Details | RETAINING RING

5325-01-521-5639 A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see PUSH ON NUT. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also CLIP, RETAINING and PIN, LOCK. Excludes RING, CONNECTING, ROUND.

Part Alternates: M274263151D, M27426-3151D, MIL-DTL-27426/3, MILDTL274263, 5325-01-521-5639, 01-521-5639, 5325015215639, 015215639

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 24 JUN 2004 01-521-5639

Drawings & Photos | NSN 5325-01-521-5639


Cross Reference | NSN 5325-01-521-5639

Part Number Cage Code Manufacturer
M27426-3151D 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MIL-DTL-27426/3 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5325-01-521-5639

Characteristic Specifications
MATERIAL STEEL, CORROSION RESISTING
SURFACE TREATMENT PASSIVATED
STRENGTH RATING NOT RATED
MATERIAL HARDNESS RATING NOT RATED
CASEHARDENING INDICATOR CASEHARDENED
RING STYLE A55 SPECIAL FLAT
INSIDE DIAMETER 2.062 INCHES NOMINAL
OUTSIDE DIAMETER 2.154 INCHES MINIMUM AND 2.179 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE D12 DOUBLE OVAL
MAJOR THICKNESS 0.049 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
USAGE DESIGN INTERNAL
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-DTL-27426/3
MANUFACTURERS CODE 96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE M27426-3151D

Restrictions/Controls & Freight Information | NSN 5325-01-521-5639

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information