NSN 5310-00-275-1854 N11FM28CX1-2 20THD, N11FM28CX1220THD, D11FM28CX1-2 20

Product Details | HEXAGON SLOTTED PLAIN NUT

5310-00-275-1854 A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes NUT (1), PLAIN, CASTELLATED, HEXAGON.

Part Alternates: N11FM28CX1-2 20THD, N11FM28CX1220THD, D11FM28CX1-2 20, D11FM28CX1220, FFN836, MILB857TYPE6STYLEA, 81328499 , 5310-00-275-1854, 00-275-1854, 5310002751854, 002751854

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	01 JAN 1963	00-275-1854	01859 ( NUT, PLAIN, SLOTTED, HEXAGON )

Drawings & Photos | NSN 5310-00-275-1854

Part Number	Request Date	QTY	Origin
FFN836	2025-03-84	32	Japan
FFN836	2024-10-291	190	US
FFN836	2023-09-258	100	TR
81328499	2023-09-244	290	DIBBS
81328499	2023-08-236	290	DIBBS
FFN836	2021-11-307	200	United States
FFN836	2021-08-228	100	United States
FFN836	2019-02-44	288	US
5310-00-275-1854	2018-12-364	101	DIBBS
FFN836	2018-02-32	2	US
FFN836	2017-05-123	25	United States
5310-00-275-1854	2016-06-179	86	DIBBS
5310-00-275-1854	2016-06-171	86	DIBBS
5310-00-275-1854	2014-12-357	76	DIBBS
FFN836	2012-12-341	1	US
FFN836	2010-11-322	100	United Kingdom
FFN836	2010-08-218	1	US
FFN836	2010-08-218	1	US
FFN836	2010-08-218	1	US
FFN836	2010-08-218	1	US
FFN836	2010-03-90	4	us
FFN836	2010-03-81	50	United States
FFN836	2010-02-46	50	United States
FFN836	2009-07-183	1000	US
FFN836	2009-05-141	580	US
FFN836	2008-07-195	20	US
FFN836	2008-06-171	200	US
FFN836	2008-02-39	1	US
FFN836	2007-10-298	100	US

Cross Reference | NSN 5310-00-275-1854

Part Number	Cage Code	Manufacturer
D11FM28CX1-2 20	82796	COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE
FFN836	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
MILB857TYPE6STYLEA	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
N11FM28CX1-2 20THD	82796	COLTEC INDUSTRIES INC DBA FAIRBANKS MORSE ENGINE

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Related Products | NSN 5310-00-275-1854

5310-00-275-1878, 5310-00-275-1881, 5310-00-275-1894, 5310-00-275-1898, 5310-00-275-1905

Technical Data | NSN 5310-00-275-1854

Characteristic	Specifications
THREAD SERIES	UNF
NOMINAL THREAD SIZE	0.500 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-1222,CLASS 2B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	NOT RATED
NUT STYLE	A17 SLOTTED, HEXAGON
NUT HEIGHT	0.687 INCHES NOMINAL
WIDTH ACROSS FLATS	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
BEARING SURFACE TYPE	CHAMFERED OR WASHER FACED
TEMP RATING	NOT RATED
NONDEFINITIVE SPEC/STD DATA	4 TYPE AND 17 STYLE
DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY MATL OR THD CLASS OR HEIGHT
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FFN836
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MILB857TYPE6STYLEA

Restrictions/Controls & Freight Information | NSN 5310-00-275-1854

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	U	Precious 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	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 5310-00-275-1854

Navy

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
Acquisition Advice Codes	Z	INSURANCE/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 Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each