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NSN: 5305-01-273-1493 / SCREW,CLOSE TOLERAN
- Product Description
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Product Description
| Manufacturer | Part Number |
|---|---|
| AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATED DBA A N S I , 80204 | B1821BH031C038D |
| FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC , 81348 | FF-S-85 |
| MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M , 96906 | MS18154-27 |
| Name | Value |
|---|---|
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.233 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| FASTENER LENGTH | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HOLE DIAMETER | 0.060 INCHES MINIMUM AND 0.068 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| HOLE QUANTITY | 1 |
Additional Information:
| Agency Usage | End Item Usage | Criticality |
|---|---|---|
| Air Force, Navy | JOINT STARS TARGET RADAR SYS;AIRCRAFT, STRATOFORTRESS B-52;E-3A AWACS | Critical Application |
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.
Cross Reference
B1821BH031C038D 80204AMERICAN NATIONAL STANDARDS INSTITUTE, INCORPORATEDFF-S-85 81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICESMS18154-27 96906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
Restrictions/Controls & Freight Information
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)
Management
Cognizance Codes9BNavy-owned stocks of DLA materialNaval Inventory Control Point, MechanicsburgSource of SupplySMSDefense Logistics AgencyEnterprise Business SystemsAgencyDNDepartment of the NavyService OrganizationNU.S. NavyAcquisition 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 CodeUUNCLASSIFIEDShelf Life Code0NondeteriorativePurchasingQTY UOM1 HD : Each
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