NSN 1560-99-477-1633, 1560994771633
DUCT,SPECIAL

Federal Supply Classification: FSC 1560 - Airframe Structural Components
National Item Identification Number: NIIN 994771633
Codification Country: United Kingdom
Item Name Code: INC 77777
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.

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DLMS^® Summary

National Stock Number 1560-99-477-1633

National Stock Number (NSN) 1560-99-477-1633, or NIIN 994771633, (duct,special) has an unknown assigned date. This NSN replaces 1 stock number, 1560011134389.

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 assigned to Item Name Code (INC) 77777.

This information was last updated on Oct 31, 2025.