Product Details | RETAINING RING

5325-00-291-3656 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: 80721A, 5325-00-291-3656, 00-291-3656, 5325002913656, 002913656

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1961 00-291-3656

Drawings & Photos | NSN 5325-00-291-3656


Cross Reference | NSN 5325-00-291-3656

Part Number Cage Code Manufacturer
80721A 16004 DAVEY COMPRESSOR CO DIV OF KECO INDUSTRIES INC
80721A 1ML14 D.W. HERCULES, LLC DBA HERCULES ENGINE COMPONENTS
80721A 28265 HERCULES ENGINE CO INC
80721A 5RQL2 DRS ENVIRONMENTAL SYSTEMS, INC. DBA D R S

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Technical Data | NSN 5325-00-291-3656

Characteristic Specifications
MATERIAL STEEL,FED,QQ-W-470,CLASS A OR B
STRENGTH RATING NOT RATED
MATERIAL HARDNESS RATING NOT RATED
CASEHARDENING INDICATOR NOT CASEHARDENED
RING STYLE A23 HOOKED WIRE
INSIDE DIAMETER 1.574 INCHES MINIMUM AND 1.620 INCHES MAXIMUM
OUTSIDE DIAMETER 1.800 INCHES MINIMUM AND 1.830 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE D4 RECTANGULAR
MAJOR THICKNESS 0.062 INCHES NOMINAL
USAGE DESIGN INTERNAL

Restrictions/Controls & Freight Information | NSN 5325-00-291-3656

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.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 063520 WAVEGUIDE IN BOXES/CRATES
Less than car load rating Q 70
Less than truck load rating W Rating Variable
Water commodity Code 723 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity H Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable