Product Details | LOCKED IN STUD

5307-00-977-1766 A headless fastener externally threaded on both ends with each threaded portion of one but not necessarily the same nominal diameter. It is designed to be locked in place by either a RING, LOCK, SERRATED or a RING, LOCK, KEYED.

Part Alternates: S245368A, S245-3-68A, 881B4MB0500, 881B-4MB0500, 5307-00-977-1766, 00-977-1766, 5307009771766, 009771766

Hardware and Abrasives | Studs

Supply Group (FSG) NSN Assign. NIIN
53 12 OCT 1966 00-977-1766

Drawings & Photos | NSN 5307-00-977-1766


Cross Reference | NSN 5307-00-977-1766

Part Number Cage Code Manufacturer
881B-4MB0500 01556 EMHART TEKNOLOGIES LLC DBA EMHART FASTENING TEKNOLOGIES
S245-3-68A 01556 EMHART TEKNOLOGIES LLC DBA EMHART FASTENING TEKNOLOGIES

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Technical Data | NSN 5307-00-977-1766

Characteristic Specifications
MATERIAL STEEL COMP 4130
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT CADMIUM OVERALL
STYLE DESIGNATOR 38 LOCKED IN
SHOULDER DIAMETER 0.239 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
SHOULDER LENGTH 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM
DISTANCE FROM SHOULDER PORTION TO NUT END 0.500 INCHES NOMINAL
OVERALL LENGTH 0.875 INCHES NOMINAL
THREAD SERIES DESIGNATOR UNF NUT THREAD UNC STUD THREAD
NOMINAL THREAD SIZE 0.250 INCHES NUT THREAD 0.312 INCHES STUD THREAD
THREAD CLASS 3A NUT THREAD 3A STUD THREAD
THREAD QUANTITY PER INCH 28 NUT THREAD 18 STUD THREAD
THREAD DIRECTION RIGHT-HAND NUT THREAD RIGHT-HAND STUD THREAD
THREAD LENGTH 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM NUT THREAD 0.330 INCHES MINIMUM AND 0.340 INCHES MAXIMUM STUD THREAD
LOCKING FEATURE RING, LOCK SERRATED
MANUFACTURERS CODE 01556
DESIGN CONTROL REFERENCE 881B-4MB0500

Restrictions/Controls & Freight Information | NSN 5307-00-977-1766

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
NMF Description 093470 BOLTS/NUTS I/S
Less than car load rating
Less than truck load rating Q 70.0
Water commodity Code 573 unknown
Originating Activity Code CT U.S. Army Aviation and Missile Command (AIR)
Redstone Arsenal, AL 35898-5230
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