Product Details | HEXAGON PLAIN NUT

5310-01-082-5344 A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see LOCKNUT, ELECTRICAL CONDUIT. See also LOCKNUT, TUBE FITTING. For items having a thickness (or height) exceeding two times the width across the flats, use POST, ELECTRICAL-MECHANICAL EQUIPMENT. (When height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.

Part Alternates: MILDTL1222, MIL-DTL-1222, MILDTL1222JTY1STYAGR5, MILS1222, MIL-S-1222, MILS1222TY1STYLEAGRADE5, 5310-01-082-5344, 01-082-5344, 5310010825344, 010825344

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 05 SEP 1979 01-082-5344

Drawings & Photos | NSN 5310-01-082-5344


Demand History | NSN 5310-01-082-5344

Part Number Request Date QTY Origin
5310-01-082-5344 2025-03-75 26 DIBBS
MILDTL1222 2025-03-72 40 United States
MILDTL1222 2025-02-49 40 United States
MILS1222 2025-01-22 8 United States
MILS1222 2025-01-22 8 United States
MILDTL1222 2023-06-159 12 United States
5310-01-082-5344 2022-03-89 25 DIBBS
5310-01-082-5344 2021-08-213 21 DIBBS
5310-01-082-5344 2021-06-158 13 DIBBS
5310-01-082-5344 2020-09-247 13 DIBBS
5310-01-082-5344 2016-08-216 53 DIBBS
5310-01-082-5344 2015-06-165 44 DIBBS
MILS1222 2015-03-89 3000 BH
MILS1222 2014-08-230 1 US
5310-01-082-5344 2013-12-359 9 DIBBS
5310-01-082-5344 2013-10-296 15 DIBBS
MILDTL1222 2013-06-169 59 US
MILS1222 2012-07-209 4 United States
MILS1222 2012-03-74 1 US
MILS1222 2011-02-49 3 US
MILS1222 2011-02-49 4 US
MILS1222 2011-02-49 5 US
MILS1222 2011-02-49 10 US
MILS1222 2011-02-49 18 US
MILS1222 2011-02-49 35 US
MILS1222 2011-02-49 40 US
MILS1222 2011-02-49 42 US
MILS1222 2011-02-49 185 US
MILS1222 2011-02-49 195 US

Cross Reference | NSN 5310-01-082-5344

Part Number Cage Code Manufacturer
MIL-DTL-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-DTL-1222J, TY-1, STY-A, GR-5 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222,TY-1,STYLE-A,GRADE-5 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5310-01-082-5344

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 1.250 INCHES
THREAD QUANTITY PER INCH 7
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 1050 OR STEEL COMP 1552 OR STEEL COMP 1053 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING 19.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NUT STYLE A12 HEXAGON
NUT HEIGHT 1.030 INCHES MINIMUM AND 1.094 INCHES MAXIMUM
WIDTH ACROSS FLATS 1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
BEARING SURFACE TYPE WASHER FACED
TEMP RATING NOT RATED
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND A STYLE AND 5 GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222,TY-1,STYLE-A,GRADE-5

Restrictions/Controls & Freight Information | NSN 5310-01-082-5344

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 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 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 5310-01-082-5344

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