NSN 5340-01-166-4508, 5340011664508
CLAMP,SYNCHRO

Federal Supply Classification: FSC 5340 - Hardware, Commercial
National Item Identification Number: NIIN 011664508
Codification Country: United States
Item Name Code: INC 40268
Criticality: (C) This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input).
Hazardous Material Indicator Code: (P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5340-01-166-4508

National Stock Number (NSN) 5340-01-166-4508, or NIIN 011664508, (clamp,synchro) was assigned November 11, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 6 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 21, 2003, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 40268. [A CLAMP DESIGNED TO HOLD AN ITEM IN POSITION, ALIGNMENT OR IN CLOSE PROXIMITY BY RIGIDLY GRIPPING THE PROJECTING RIM, RIDGE, COLLAR OR EDGE OF THE ITEM. A LOCKWASHER, BOLT, SCREW OR THE LIKE MAY BE A PART OF THE ITEM OF SUPPLY.]. This item has critical features such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5340011664508 does not contain precious metals.

This NSN is associated to Schedule B 8205700090: clamps and similar handtools, not vises, and parts. The Schedule B End Use is listed as photo, service industry machinery.

This information was last updated on Jul 01, 2025.

Technical Characteristics

CRITICALITY CODE JUSTIFICATION: (CRTL) ZZZY
FURNISHED ITEMS: (ABFF) LOCKNUT
HEIGHT: (HGTH) 0.250 INCHES NOMINAL
HOLE DIAMETER: (AAUB) 0.204 INCHES NOMINAL
LENGTH: (ABRY) 1.500 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL: (MATT) STEEL COMP 304
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: (ZZZY) AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
SPECIAL FEATURES: (FEAT) ONE OTHER HOLE ALONG LENGTH 0.323 IN. NOM DIA
SPECIAL TEST FEATURES: (SPCL) SPECIAL QUALITY CONTROL TESTING
WIDTH: (ABGL) 0.500 INCHES NOMINAL
TEST DATA DOCUMENT: (TEST) 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).