Product Details | DOUBLE HEXAGON SINGLE BALL SEAT SELF-LOCKING NUT

5310-01-498-2857 A nut having one convex, spherical bearing surface, with 12 drive points, 24 sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: NAS17274N, NAS1727-4N, MILN25027, MIL-N-25027, 5310-01-498-2857, 01-498-2857, 5310014982857, 014982857

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 20 JUN 2002 01-498-2857

Drawings & Photos | NSN 5310-01-498-2857


Demand History | NSN 5310-01-498-2857

Part Number Request Date QTY Origin
5310-01-498-2857 2025-04-104 225 US
5310-01-498-2857 2024-04-102 670 United States
MILN25027 2023-08-236 54 US
MILN25027 2020-09-262 156 US
5310-01-498-2857 2016-10-291 195 DIBBS
5310-01-498-2857 2016-09-263 48 DIBBS
MILN25027 2012-06-157 16 United States
MILN25027 2012-05-139 15 United States
MILN25027 2011-09-265 28 US
MILN25027 2011-09-264 25 Canada
MILN25027 2011-02-49 5 US
MILN25027 2011-02-49 10 US
MILN25027 2011-02-49 40 US
MILN25027 2010-06-181 50 United States
MILN25027 2010-04-111 5000 US
MILN25027 2009-11-321 560 US
MILN25027 2009-10-281 8 Canada
MILN25027 2008-09-270 50 Italy

Cross Reference | NSN 5310-01-498-2857

Part Number Cage Code Manufacturer
MIL-N-25027 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
NAS1727-4N 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES

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Technical Data | NSN 5310-01-498-2857

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.250 INCHES
THREAD QUANTITY PER INCH 28
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 8740 OVERALL
SURFACE TREATMENT CADMIUM OVERALL
NUT STYLE A8A SINGLE BALL SEAT, DOUBLE HEXAGON
BALL SEAT RADIUS 0.102 INCHES NOMINAL
NUT HEIGHT 0.269 INCHES NOMINAL
WIDTH ACROSS FLATS 0.282 INCHES NOMINAL
LOCKING FEATURE PREVAILING TORQUE WITH METALLIC INSERT
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-N-25027

Restrictions/Controls & Freight Information | NSN 5310-01-498-2857

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
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
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 576 unknown
Originating Activity Code XF
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 5310-01-498-2857

Category Code Description
Budget Code9 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 ValidationN 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 CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesDDoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each