NSN 5305-01-179-5510, 5305011795510
SCREW,LOCK,THERMAL VALVE

Federal Supply Classification: FSC 5305 - Screws
National Item Identification Number: NIIN 011795510
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5305-01-179-5510

National Stock Number (NSN) 5305-01-179-5510, or NIIN 011795510, (screw,lock,thermal valve) was assigned May 19, 1984 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There is only one manufacturer part number 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, only one supplier is deemed design controlled or valid supply parts.

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

This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5305011795510 contains an unknown precious metal.

This NSN is associated to Schedule B 7616106000: threaded fasteners of aluminum. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) AL ALLOY QQ-A-225/9 7075-T73; ANODIZE MIL-A-8625 TY1 CL1; 0.8031-0.8125 IN. DIA; 0.3125-0.3160 IN. HEX HOLE THRU; 0.037-0.057 IN. DIA 3 HOLES THRU WALL; CHAMFER 40-50 DEG 0.047-0.070 IN. BOTH ENDS CORNERS; 0.8125-16 UN-3A THDS; 0.375-0.400 IN. LG
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 6AL ALLOY QQ-A-225/9 7075-T73; ANODIZE MIL-A-8625 TY1 CL1; 0.8031-0.8125 IN. DIA; 0.3125-0.3160 IN. HEX HOLE THRU; 0.037-0.057 IN. DIA 3 HOLES THRU WALL; CHAMFER 40-50 DEG 0.047-0.070 IN. BOTH ENDS CORNERS; 0.8125-16 UN-3A THDS; 0.375-0.400 IN. LG