Product Details | ROUND EXTENDED WASHER SELF-LOCKING NUT

5310-01-268-3885 A nut, circular in shape, having wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery. It has an integral washer which extends beyond the wrenching element periphery and an integral feature is incorporated for locking on the threads of a mating member.

Part Alternates: H511335K7, H51133-5K7, 5310-01-268-3885, 01-268-3885, 5310012683885, 012683885

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 29 NOV 1987 01-268-3885

Drawings & Photos | NSN 5310-01-268-3885


Cross Reference | NSN 5310-01-268-3885

Part Number Cage Code Manufacturer
H51133-5K7 15653 ALCOA GLOBAL FASTENERS, INC.

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Technical Data | NSN 5310-01-268-3885

Characteristic Specifications
THREAD SERIES UNJF
NOMINAL THREAD SIZE 0.312 INCHES
THREAD QUANTITY PER INCH 24
THREAD CLASS 3B
THREAD DIRECTION RIGHT-HAND
MATERIAL ALUMINUM ALLOY 7075 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-250/13,T73 UNS A97075 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING NOT RATED
NUT STYLE A292 SPLINE DRIVE
WASHER OUTSIDE DIAMETER 0.532 INCHES MINIMUM AND 0.538 INCHES MAXIMUM
OVERALL HEIGHT 0.425 INCHES MAXIMUM
WASHER THICKNESS 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
DRIVE POINT QUANTITY 8
LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN
NUT COUNTERBORE DEPTH 0.117 INCHES MINIMUM AND 0.127 INCHES MAXIMUM WASHER
COUNTERBORE DIAMETER 0.346 INCHES MINIMUM AND 0.350 INCHES MAXIMUM WASHER
LUBRICATION SOLUBLE LUBRICANT
TEMP RATING 250.0 DEG FAHRENHEIT NOMINAL
III SUPPLEMENTARY FEATURES COLOR CODE BLUE; SPLINE SIZE 12 U/W STD K-FAST TOOL; U/O 1/64 IN. OR 1/32 IN. OVERSIZE SHANK BOLTS; LOCKING TORQUE 30.0 IN-LB; 5550 LB MIN TENSILE;TAMPER PROOF SHEAR DESIGN

Restrictions/Controls & Freight Information | NSN 5310-01-268-3885

Category Code Description
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.
Precious Metals Indicator Code:UPrecious 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
No Freight Information