Product Details | SQUARE NECK BOLT

5306-00-903-8593 A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.

Part Alternates: MS3575130, MS35751-30, NASM35751, AMS-QQ-P-416 TY2CL3, AMSQQP416TY2CL3, ANSI B18.5, ANSIB185, ASME-B18.5, ASMEB185, ASTMB633, ASTM-B633, 5306-00-903-8593, 00-903-8593, 5306009038593, 009038593

Hardware and Abrasives | Bolts

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1960 00-903-8593

Drawings & Photos | NSN 5306-00-903-8593


Demand History | NSN 5306-00-903-8593

Part Number Request Date QTY Origin
ASTMB633 2023-06-159 12 United States
5306-00-903-8593 2020-09-272 80 United States
MS3575130 2020-04-121 700 United States
5306-00-903-8593 2019-04-92 100 United States
ASTMB633 2014-07-203 20 United States

Cross Reference | NSN 5306-00-903-8593

Part Number Cage Code Manufacturer
AMS-QQ-P-416 TY2CL3 81343 SOCIETY OF AUTOMOTIVE ENGINEERS INC
ANSI B18.5 80204 AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED
ASME-B18.5 05047 AMERICAN SOCIETY OF MECHANICAL ENGINEERS
ASTM-B633 81346 AMERICAN SOCIETY FOR TESTING AND MATERIALS
MS35751-30 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
NASM35751 00756 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC

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Technical Data | NSN 5306-00-903-8593

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.750 INCHES MINIMUM
FASTENER LENGTH 4.969 INCHES MINIMUM AND 5.031 INCHES MAXIMUM
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION SAE GR 1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OR ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING 95.0 ROCKWELL B MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH 55000 POUNDS PER SQUARE INCH
HEAD STYLE B30 BUTTON
HEAD DIAMETER 0.563 INCHES MINIMUM AND 0.594 INCHES MAXIMUM
HEAD HEIGHT 0.125 INCHES MINIMUM AND 0.145 INCHES MAXIMUM

Restrictions/Controls & Freight Information | NSN 5306-00-903-8593

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 093486 BOLTS,NUTS OR SCREWS, NOI (SUB 3)
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 573 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 5306-00-903-8593

Category Code Description
Materiel Category and Inventory ManagerT Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code0 Medical Materiel
Weapons Systems/End Item or Homogeneous Group00DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplyGSAGeneral Services Administration
Washington, D.C. 20406
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
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.
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 SupplyGSAGeneral Services Administration
Washington, D.C. 20406
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Category Code Description
Stores Account Code1Marine Corps Stock Fund Account Item.
Combat Essentiality Code7An item that has been reviewed and determined not to fit the definition of codes 0 thru 6. These items are not assigned a specific application within the Marine Corps.
Materiel Management Code0GSA MaterielItems cataloged by the Marine Corps and managed by the General Services Administration.
Echelon Management Code2ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled.
Source of SupplyGSAGeneral Services Administration
Washington, D.C. 20406
AgencyDMU.S. Marine Corps
Service OrganizationMU.S. Marine Corps
ReparabilityZNonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code.
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Category Code Description
Cognizance Codes9QNavy-owned stocks of items accepted by the General Services Administration for support of Navy requirements
Naval Inventory Control Point, Mechanicsburg
Source of SupplyGSAGeneral Services Administration
Washington, D.C. 20406
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative