NSN 4440-00-054-5921, 4440000545921
COMPRESSOR-DEHYDRATOR,ELECTRONIC

Federal Supply Classification: FSC 4440 - Driers, Dehydrators, and Anhydrators
National Item Identification Number: NIIN 000545921
Codification Country: United States
Item Name Code: INC 21737
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 4440-00-054-5921

National Stock Number (NSN) 4440-00-054-5921, or NIIN 000545921, (compressor-dehydrator,electronic) was assigned May 30, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 2 suppliers are listed as Active suppliers 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 Mar 02, 2000, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 21737. [AN ITEM SPECIFICALLY DESIGNED TO SUPPLY DESICCATED AIR AT SPECIFIC PRESSURE(S) TO ANOTHER COMPONENT(S).]. 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 4440000545921 does not contain precious metals.

This NSN is associated to Schedule B 8419909550: parts, nesoi, of machinery, plant or laboratory equipment for the treatment of materials by a process involving a change of temperature, nesoi. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333999: all other miscellaneous general purpose machinery manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 0.29 CFM MAX RATING OF COMPRESSOR; 40 PSI,MAX RATING OF DEHYDRATOR; OPERATING POWER REQUIREMENTS,AC,120 V,400 CYCLES,3 PHASE,208 V,400 CYCLES,3 PHASE,NOT DESIGNED FOR DC OPERATION; 6.5 IN. BY 10.00 IN. BY 16.5 IN. OVER-ALL DIM.
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: (ZZZY) AS DIFFERENTIATED BY SOURCE CONTROL DWG NO 97942-335D548H01
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) T0.29 CFM MAX RATING OF COMPRESSOR; 40 PSI,MAX RATING OF DEHYDRATOR; OPERATING POWER REQUIREMENTS,AC,120 V,400 CYCLES,3 PHASE,208 V,400 CYCLES,3 PHASE,NOT DESIGNED FOR DC OPERATION; 6.5 IN. BY 10.00 IN. BY 16.5 IN. OVER-ALL DIM.