Product Details | RETAINING RING

5325-01-186-1788 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: M2742640121D, MILDTL27426, MIL-DTL-27426, RRN145SP, RRN-145-SP, WHM145S02PA, WHM-145-S02-PA, 5325-01-186-1788, 01-186-1788, 5325011861788, 011861788

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 08 AUG 1984 01-186-1788

Drawings & Photos | NSN 5325-01-186-1788


Demand History | NSN 5325-01-186-1788

Part Number Request Date QTY Origin
5325-01-186-1788 2024-01-23 84 DIBBS
MILDTL27426 2018-04-101 1035 KR
5325-01-186-1788 2017-11-333 318 DIBBS
5325-01-186-1788 2015-11-328 374 DIBBS
5325-01-186-1788 2014-04-93 225 DIBBS
MILDTL27426 2013-09-259 2000 CA
5325-01-186-1788 2013-05-129 138 DIBBS
5325-01-186-1788 2010-05-141 93 DIBBS
5325-01-186-1788 2009-09-259 232 DIBBS

Cross Reference | NSN 5325-01-186-1788

Part Number Cage Code Manufacturer
M2742640121D 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-DTL-27426 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
RRN-145-SP 80756 SPIROLOX, INC.
WHM-145-S02-PA 51814 SMALLEY STEEL RING CO.

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Technical Data | NSN 5325-01-186-1788

Characteristic Specifications
MATERIAL STEEL, SAE 302 OR STEEL, AISI 302 OR STEEL, MIL-S-5059, TYPE 302 OR STEEL, AMS 5688
SURFACE TREATMENT PASSIVATED, QQ-P-35
STRENGTH RATING NOT RATED
MATERIAL HARDNESS RATING 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM
CASEHARDENING INDICATOR NOT CASEHARDENED
RING STYLE A55 SPECIAL FLAT
INSIDE DIAMETER 1.328 INCHES MINIMUM AND 1.336 INCHES MAXIMUM
OUTSIDE DIAMETER 1.559 INCHES MINIMUM AND 1.572 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE D12 DOUBLE OVAL
MAJOR THICKNESS 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
USAGE DESIGN INTERNAL
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-DTL-27426
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE M2742640121D

Restrictions/Controls & Freight Information | NSN 5325-01-186-1788

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: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.
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 KH Defense Industrial Supply Center
Philadelphia, PA 19111
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 5325-01-186-1788

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.
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
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
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 CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative