Product Details | HEXAGON PLAIN NUT

5310-01-255-2692 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: M1222N1X6C20GENZE, MILDTL1222, MIL-DTL-1222, MILS1222, MIL-S-1222, 518-5940836 ITEM 203, 5185940836ITEM203, 5310-01-255-2692, 01-255-2692, 5310012552692, 012552692

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 17 MAY 1987 01-255-2692

Drawings & Photos | NSN 5310-01-255-2692


Demand History | NSN 5310-01-255-2692

Part Number Request Date QTY Origin
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
5310-01-255-2692 2022-09-244 10 DIBBS
5310-01-255-2692 2020-09-247 8 DIBBS
MILS1222 2015-03-89 3000 BH
5310-01-255-2692 2014-09-261 739 DIBBS
MILS1222 2014-08-230 1 US
5310-01-255-2692 2013-12-353 22 DIBBS
5310-01-255-2692 2013-12-350 534 DIBBS
5310-01-255-2692 2013-12-338 22 DIBBS
5310-01-255-2692 2013-12-335 534 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 5310-01-255-2692

Part Number Cage Code Manufacturer
518-5940836 ITEM 203 53711 NAVAL SEA SYSTEMS COMMAND
MIL-DTL-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-S-1222 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5310-01-255-2692

Characteristic Specifications
THREAD SERIES UNC
NOMINAL THREAD SIZE 0.375 INCHES
THREAD QUANTITY PER INCH 16
THREAD CLASS 2B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A194,GRADE 4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ZINC AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTM B633,TY2,CL 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A12 HEXAGON
NUT HEIGHT 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM
WIDTH ACROSS FLATS 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
BEARING SURFACE TYPE CHAMFERED OR WASHER FACED
TEMP RATING NOT RATED
NONDEFINITIVE SPEC/STD DATA 2 TYPE AND A STYLE AND 4 GRADE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-S-1222

Restrictions/Controls & Freight Information | NSN 5310-01-255-2692

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 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 5310-01-255-2692

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