Product Details | SERRATED LOCK RING

5365-00-576-2561 A locking device which is serrated on the inside and outside diameters. It may have outer serrations omitted on one or two sides for close edge installation. The inner serrations engage the mating serrations of bolts, inserts, nuts, studs or similar items to be locked in place. The outer serrations broach their way into parent material when driven or pressed into place.

Part Alternates: R1381P010, RL38SM9, 122T979, 5365-00-576-2561, 00-576-2561, 5365005762561, 005762561

Hardware and Abrasives | Bushings, Rings, Shims, and Spacers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-576-2561

Demand History | NSN 5365-00-576-2561

Part Number Request Date QTY Origin
RL38SM9 2025-06-175 158 DIBBS
RL38SM9 2022-08-228 92 DIBBS
RL38SM9 2021-04-108 32 DIBBS
5365-00-576-2561 2017-05-137 81 DIBBS
5365-00-576-2561 2009-04-106 80 DIBBS

Cross Reference | NSN 5365-00-576-2561

Part Number Cage Code Manufacturer
122T979 48521 COLT INDUSTRIES OPERATING CORP PRATT AND WHITNEY MACHINE TOOL DIV
122T979 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS
122T979 79500 WESTINGHOUSE ELECTRIC CORP
R1381P010 03350 GENERAL ELECTRIC COMPANY DBA GE STRUCTURED SERVICES DIV
R1381P010 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
R1381P010 99207 GENERAL ELECTRIC COMPANY DBA GE
RL38SM9 83324 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS

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Technical Data | NSN 5365-00-576-2561

Characteristic Specifications
MATERIAL STEEL,QQ-A-763,CLASS 303,COND A
SURFACE TREATMENT CADMIUM PLATED
OVERALL OUTSIDE DIAMETER 0.625 INCHES NOMINAL
INSIDE DIAMETER 0.468 INCHES NOMINAL
OVERALL HEIGHT 0.145 INCHES NOMINAL
PILOT DIAMETER 0.560 INCHES NOMINAL
OUTER SERRATION QUANTITY 36
INNER SERRATION QUANTITY 26

Restrictions/Controls & Freight Information | NSN 5365-00-576-2561

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 5365-00-576-2561

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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each
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 CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each