NSN 2990-00-534-1637, 2990005341637
COVER,TURBO-CHARGER INLET INSULA

Federal Supply Classification: FSC 2990 - Miscellaneous Engine Accessories, Nonaircraft
National Item Identification Number: NIIN 005341637
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.

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DLMS^® Summary

National Stock Number 2990-00-534-1637

National Stock Number (NSN) 2990-00-534-1637, or NIIN 005341637, (cover,turbo-charger inlet insula) was assigned September 14, 1974 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

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

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 05, 2013, 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) 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 2990005341637 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) EINNER FOIL 0.003 IN. NOM THK,FOIL MATL CRES MIL-S-6721 OR CRES QQ-S-766 CLASS 321 OR 347 FINISH 2B OR 2D,INNER LAYER INSULATION MATERIAL SILICA FIBRE OR EQUIVALENT AMS 3680; 32 SPECIAL RIVETS FSCM 19207 PART NO. 10922393,CRES OR COPPER NICKEL ALLOY,0.438 IN. DIA OF RIVET; 0.147 IN. DIA OF BORE IN BOTTOM OF RIVET; 0.407 IN. LG OF RIVET; ROUNDED HEAD; 0.188 DEPTH OF BORE IN SHANK END; 0.015 IN. THK OF HEAD OF RIVET; 32 WASHERS FSCM 88044 P/N AN960C10L
END ITEM IDENTIFICATION: (AGAV) 28152231695
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) INNER FOIL 0.003 IN. NOM THK,FOIL MATL CRES MIL-S-6721 OR CRES QQ-S-766 CLASS 321 OR 347 FINISH 2B OR 2D,INNER LAYER INSULATION MATERIAL SILICA FIBRE OR EQUIVALENT AMS 3680; 32 SPECIAL RIVETS FSCM 19207 PART NO. 10922393,CRES OR COPPER NICKEL ALLOY,0.438 IN. DIA OF RIVET; 0.147 IN. DIA OF BORE IN BOTTOM OF RIVET; 0.407 IN. LG OF RIVET; ROUNDED HEAD; 0.188 DEPTH OF BORE IN SHANK END; 0.015 IN. THK OF HEAD OF RIVET; 32 WASHERS FSCM 88044 P/N AN960C10L