Product Details | RETAINING RING

5325-00-970-7166 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: BACF34D4R, PAF414, PAF41-4, 19404, 1940-4, 5325-00-970-7166, 00-970-7166, 5325009707166, 009707166

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1962 00-970-7166

Drawings & Photos | NSN 5325-00-970-7166


Demand History | NSN 5325-00-970-7166

Part Number Request Date QTY Origin
BACF34D4R 2025-10-303 150 United States
BACF34D4R 2024-11-309 145 United States
BACF34D4R 2024-05-128 16 United States
1940-4 2019-02-34 1 DIBBS
1940-4 2019-02-34 6 DIBBS
5325-00-970-7166 2017-08-240 5 Germany
5325-00-970-7166 2017-08-240 5 Germany
5325-00-970-7166 2017-08-240 5 Germany
5325-00-970-7166 2017-08-240 5 Germany
5325-00-970-7166 2017-08-228 5 Germany
5325-00-970-7166 2017-07-200 10 US
5325-00-970-7166 2008-04-100 86 DIBBS
5325-00-970-7166 2008-02-50 198 DIBBS

Cross Reference | NSN 5325-00-970-7166

Part Number Cage Code Manufacturer
1940-4 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
1940-4 27624 SPS TECHNOLOGIES, LLC DBA PB FASTENERS
1940-4 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
1940-4 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
1940-4 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
1940-4 C4293 ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
BACF34D4R 08903 THE BOEING COMPANY DBA BOEING
BACF34D4R 80359 HERR AND CO INC
BACF34D4R 81205 THE BOEING COMPANY DBA BOEING
PAF41-4 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP

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Technical Data | NSN 5325-00-970-7166

Characteristic Specifications
MATERIAL STEEL
STRENGTH RATING NOT RATED
MATERIAL HARDNESS RATING NOT RATED
CASEHARDENING INDICATOR NOT CASEHARDENED
RING STYLE A81 CLOVER
INSIDE DIAMETER 0.170 INCHES NOMINAL
OUTSIDE DIAMETER 0.330 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLE D1 ROUND
MATERIAL DIAMETER 0.027 INCHES NOMINAL
USAGE DESIGN EXTERNAL
MANUFACTURERS CODE 80539
DESIGN CONTROL REFERENCE 1940-4

Restrictions/Controls & Freight Information | NSN 5325-00-970-7166

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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 095190 HARDWARE, NOI SUB 9
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 713 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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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

Management | NSN 5325-00-970-7166

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
PG : Package
Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
PG : Package