NSN 5310-00-551-6691 FFB571TYPEA7, MIL-DTL-1222/TY1GR5, MILDTL1222TY1GR5

Product Details | HEXAGON PLAIN NUT

5310-00-551-6691 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: FFB571TYPEA7, MIL-DTL-1222/TY1GR5, MILDTL1222TY1GR5, 5310-00-551-6691, 00-551-6691, 5310005516691, 005516691

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	01 JAN 1963	00-551-6691	01857 ( NUT, PLAIN, HEXAGON )

Drawings & Photos | NSN 5310-00-551-6691

Part Number	Request Date	QTY	Origin
5310-00-551-6691	2024-08-240	15	DIBBS
5310-00-551-6691	2024-08-232	15	DIBBS
5310-00-551-6691	2024-04-108	20	DIBBS
5310-00-551-6691	2024-01-31	15	DIBBS
5310-00-551-6691	2023-10-282	27	DIBBS
5310-00-551-6691	2022-03-75	72	DIBBS
5310-00-551-6691	2020-12-364	93	DIBBS
5310-00-551-6691	2018-02-51	107	DIBBS
5310-00-551-6691	2014-07-194	114	DIBBS
5310-00-551-6691	2012-11-310	67	DIBBS
5310-00-551-6691	2012-10-296	150	DIBBS
5310-00-551-6691	2012-03-75	96	DIBBS
5310-00-551-6691	2011-09-256	54	DIBBS
5310-00-551-6691	2011-09-256	92	DIBBS
5310-00-551-6691	2011-08-231	92	DIBBS
5310-00-551-6691	2011-05-123	54	DIBBS
5310-00-551-6691	2009-12-365	13	DIBBS
5310-00-551-6691	2009-07-194	20	DIBBS
5310-00-551-6691	2009-06-174	13	DIBBS
5310-00-551-6691	2008-12-358	6	DIBBS
5310-00-551-6691	2008-09-252	20	DIBBS
5310-00-551-6691	2008-06-170	75	DIBBS
5310-00-551-6691	2008-06-155	64	DIBBS
5310-00-551-6691	2008-03-64	55	DIBBS

Cross Reference | NSN 5310-00-551-6691

Part Number	Cage Code	Manufacturer
FFB571TYPEA7	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
MIL-DTL-1222/TY1GR5	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Related Products | NSN 5310-00-551-6691

5310-00-551-6694, 5310-00-551-6760, 5310-00-551-6761, 5310-00-551-6762, 5310-00-551-6793

Technical Data | NSN 5310-00-551-6691

Characteristic	Specifications
THREAD SERIES	UNC
NOMINAL THREAD SIZE	0.750 INCHES
THREAD QUANTITY PER INCH	10
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	STEEL OVERALL
HARDNESS RATING	NOT RATED
NUT STYLE	A12 HEXAGON
NUT HEIGHT	0.642 INCHES MINIMUM AND 0.671 INCHES MAXIMUM
WIDTH ACROSS FLATS	1.0450 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM
BEARING SURFACE TYPE	WASHER FACED
TEMP RATING	NOT RATED
NONDEFINITIVE SPEC/STD DATA	A7 TYPE
DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY NOMINAL THREAD SIZE AND THREADS PER INCH
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FFB571TYPEA7
MANUFACTURERS CODE	81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-DTL-1222/TY1GR5

Restrictions/Controls & Freight Information | NSN 5310-00-551-6691

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 5310-00-551-6691

Category	Code	Description
Materiel Category and Inventory Manager	T	Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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	M EA : Each

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price Validation	N	The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM. The price has not been analyzed or reviewed for accuracy. ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation Code	SX	SX:AF SICA RESIDUAL MMAC-OC-ALC
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
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	M EA : Each

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	M EA : Each