NSN 5310-01-306-9048 BH00620M4, BH136M4L, BH136M-4L

Product Details | HEXAGON EXTENDED WASHER SELF-LOCKING NUT

5310-01-306-9048 A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: BH00620M4, BH136M4L, BH136M-4L, KFN511DL4, KFN511DL-4, KFN517DL4, KFN6684, KFN668-4, LE11400310004, LE114-0031-0004, 03A1364L, 03A136-4L, 5310-01-306-9048, 01-306-9048, 5310013069048, 013069048

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
53	01 SEP 1989	01-306-9048	29730 ( NUT, SELF-LOCKING, EXTENDED WASHER, HEXAGON )

Drawings & Photos | NSN 5310-01-306-9048

Part Number	Request Date	QTY	Origin
5310-01-306-9048	2025-09-252	10	OM
KFN517DL4	2025-07-191	4	us
5310-01-306-9048	2025-06-175	32	Philippines
5310-01-306-9048	2025-05-132	32	US
5310-01-306-9048	2022-09-250	1000	India
5310-01-306-9048	2022-04-91	450	India
5310-01-306-9048	2021-11-307	224	MY
5310-01-306-9048	2021-09-246	224	Malaysia
5310-01-306-9048	2021-09-246	224	MY
03A136-4L	2021-09-244	3699	DIBBS
BH00620M4	2021-09-244	3699	DIBBS
KFN668-4	2021-09-244	3699	DIBBS
KFN517DL4	2021-08-242	224	Malaysia
5310-01-306-9048	2021-08-239	224	Malaysia
03A136-4L	2020-10-302	1554	DIBBS
BH00620M4	2020-10-302	1554	DIBBS
KFN668-4	2020-10-302	1554	DIBBS
03A136-4L	2020-09-267	500	DIBBS
BH00620M4	2020-09-267	500	DIBBS
KFN668-4	2020-09-267	500	DIBBS
03A136-4L	2019-01-30	3340	DIBBS
BH00620M4	2019-01-30	3340	DIBBS
KFN668-4	2019-01-30	3340	DIBBS
5310-01-306-9048	2008-09-252	8291	DIBBS

Cross Reference | NSN 5310-01-306-9048

Part Number	Cage Code	Manufacturer
03A136-4L	1W025	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE
03A136-4L	76823	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NORTHROP GRUMMAN AEROSPACE
BH00620M4	27238	BRISTOL INDUSTRIES
BH136M-4L	27238	BRISTOL INDUSTRIES
KFN511DL-4	92215	ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
KFN511DL4	15653	ALCOA GLOBAL FASTENERS, INC.
KFN511DL4	17466	GE KAYE INSTRUMENTS INC
KFN511DL4	27970	GE INFRASTRUCTURE SENSING, INC. DBA GE SENSING & INSPECTION
KFN511DL4	56878	SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
KFN511DL4	97928	HUCK INTL INC
KFN517DL4	15653	ALCOA GLOBAL FASTENERS, INC.
KFN668-4	08524	DEUTSCH FASTENER CORP
KFN668-4	15653	ALCOA GLOBAL FASTENERS, INC.
KFN668-4	17446	HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
KFN668-4	56878	SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION
KFN668-4	92215	ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
LE114-0031-0004	43999	BOEING COMPANY, THE DBA BOEING

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Related Products | NSN 5310-01-306-9048

5310-01-306-9554, 5310-01-306-9555, 5310-01-306-9597, 5310-01-306-9598, 5310-01-306-9599

Technical Data | NSN 5310-01-306-9048

Characteristic	Specifications
THREAD SERIES	UNJF
NOMINAL THREAD SIZE	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3B
THREAD DIRECTION	RIGHT-HAND
MATERIAL	IRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	NOT RATED
NUT STYLE	A294 HEXAGON
WASHER OUTSIDE DIAMETER	0.425 INCHES MAXIMUM
OVERALL HEIGHT	0.340 INCHES MAXIMUM
WASHER THICKNESS	ANY ACCEPTABLE
WIDTH ACROSS FLATS	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT COUNTERBORE DEPTH	0.107 INCHES MINIMUM AND 0.117 INCHES MAXIMUM WASHER
COUNTERBORE DIAMETER	0.284 INCHES MINIMUM AND 0.288 INCHES MAXIMUM WASHER
LUBRICATION	DRY FILM LUBRICANT
TEMP RATING	NOT RATED
SPECIAL FEATURES	YELLOW IDENTIFICATION ON OUTSIDE OF NUT

Restrictions/Controls & Freight Information | NSN 5310-01-306-9048

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:	A	Item 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.

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	KH	Defense Industrial Supply Center Philadelphia, PA 19111
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 5310-01-306-9048

Air Force

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	Q EA : Each