Product Details | INTERNAL WRENCHING PLAIN NUT

5310-01-274-3251 A cylindrical-shaped nut, the end opposite the bearing surface being designed with an internal socket or splines for use with an inserted wrench.

Part Alternates: ALLENUT 5/16-24UNF-2A, ALLENUT51624UNF2A, B1291411, B-129141-1, LLHX55067, LL-HX5-5067, PO0166NRP, 1291411, 129141-1, 5310-01-274-3251, 01-274-3251, 5310012743251, 012743251

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 07 MAR 1988 01-274-3251

Drawings & Photos | NSN 5310-01-274-3251


Cross Reference | NSN 5310-01-274-3251

Part Number Cage Code Manufacturer
129141-1 94271 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
ALLENUT 5/16-24UNF-2A 94271 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
B-129141-1 94271 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
LL-HX5-5067 14153 DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER
PO0166NRP 14153 DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER

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Technical Data | NSN 5310-01-274-3251

Characteristic Specifications
THREAD SERIES UNF
NOMINAL THREAD SIZE 0.312 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 2A
THREAD DIRECTION RIGHT-HAND
MATERIAL STEEL COMP 303 OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A19 INTERNAL WRENCHING
NUT DIAMETER 0.521 INCHES MINIMUM AND 0.526 INCHES MAXIMUM
NUT HEIGHT 0.512 INCHES MINIMUM AND 0.522 INCHES MAXIMUM
COUNTERSINK ANGLE 90.0 DEGREES NOMINAL NUT
INTERNAL DRIVE STYLE E4 DOUBLE HEXAGON
WIDTH BETWEEN FLATS 0.310 INCHES NOMINAL
TEMP RATING NOT RATED
SPECIAL FEATURES ITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER PHILADELPHIA PRODUCTION STANDARD NO. PO0166NRP
TEST DATA DOCUMENT 81349-MIL-P-23199 SPECIFICATION
SPECIAL TEST FEATURES SPECIAL QUALITY CONTROL TESTING
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS REFERENCE NUMBER DIFFERENTIATING MATERIAL WILL BE IN ACCORDANCE WITH NAVAL INVENTORY CONTROL POINT ACTIVITY HX QUALITY CONTROL. MANUFACTURING AND TESTING SPECIFICATIONS AVAILABLE AT THE DLA ICP
CRITICALITY CODE JUSTIFICATION ZZZY
MANUFACTURERS CODE 94271
DESIGN CONTROL REFERENCE B-129141-1

Restrictions/Controls & Freight Information | NSN 5310-01-274-3251

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:SThe item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
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 5310-01-274-3251

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