Product Details | HEXAGON HEAD CAP SCREW

5305-01-529-4193 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.

Part Alternates: B1821BH125C300L, 5305-01-529-4193, 01-529-4193, 5305015294193, 015294193

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 15 APR 2005 01-529-4193

Drawings & Photos | NSN 5305-01-529-4193


Demand History | NSN 5305-01-529-4193

Part Number Request Date QTY Origin
5305-01-529-4193 2025-09-254 120 PK
5305-01-529-4193 2025-08-232 10 DIBBS
5305-01-529-4193 2025-08-223 100 PK
B1821BH125C300L 2011-04-118 1 AU
5305-01-529-4193 2011-04-101 120 AU
B1821BH125C300L 2011-04-97 125 United States
5305-01-529-4193 2011-04-95 120 Australia
5305-01-529-4193 2011-03-88 120 US
B1821BH125C300L 2010-08-243 115 US
B1821BH125C300L 2010-08-243 115 US

Cross Reference | NSN 5305-01-529-4193

Part Number Cage Code Manufacturer
B1821BH125C300L 53711 NAVAL SEA SYSTEMS COMMAND
B1821BH125C300L 80204 AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED

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Technical Data | NSN 5305-01-529-4193

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 1.250 INCHES
THREAD QUANTITY PER INCH 7
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 3.000 INCHES NOMINAL
FASTENER LENGTH 3.000 INCHES NOMINAL
MATERIAL PLASTIC POLYAMIDE LOCKING FEATURE STEEL UNS K04100 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE ASTM A 354 GR BD ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENT ZINC AND CHROMATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTM B 633 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
HEAD STYLE C1 HEXAGON
HEAD HEIGHT 0.749 INCHES MINIMUM AND 0.813 INCHES MAXIMUM
WIDTH BETWEEN FLATS 1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
LOCKING FEATURE PATCH OR STRIP THREADS
III END ITEM IDENTIFICATION AN/SQS-56 SONAR COMPOSITE DOME

Restrictions/Controls & Freight Information | NSN 5305-01-529-4193

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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 096640 SCREWS, IRON OR STEEL
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 573 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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 5305-01-529-4193

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