The Fan Assy,wired, cataloged under National Stock Number 4140-01-498-3503, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-498-3503 |
| Primary Part Number | B731 |
| Item Name | Fan Assy,wired |
| FSC / FSG | 4140 / 41 — No Item Name Available |
| Manufacturer | Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 7383980-02 | Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA) |
| B731 PRIMARY | Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA) |
NSN 4140-01-498-3503 is a Fan Assy,wired, manufactured by Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan, classified under FSC 4140 (No Item Name Available). Status: active.
NSN 4140-01-498-3503 has 2 cross-referenced part numbers: 7383980-02 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), B731 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan).
There are 2 known substitutes for 4140-01-498-3503: 1620-00-348-2101, 3120-00-846-8325. Verify interchangeability with system specifications before substitution.
Key specifications for B731: Criticality Code Justification: FEAT; Special Features: ITEMS ARE BEING CODED AS CRITICAL TO INSURE SOURCE INSPECTION WILL BE PERFORMED AT THE POINT OF MANUFACTURE, PRIOR TO MATERIAL RECEIPT BY THE US NAVY OR OTHER DOD COMPONENTS. THESE ITEMS ARE PIECE PARTS OR END ITEMS IN SUPPORT OF VITAL MILITARY HARDWARE NECESSARY TO SUSTAIN THE SUCCESSFUL MISSION OF THE SHIPS, SUBMARINES, AND SHORE STATIONS OF THE US NAVY. CRITICAL FEATURES INCLUDING, BUT NOT LIMITED TO, DIMENSIONS, TOLERANCES/CLEARANCES, ELECTRONIC CHARACTERISTICS, AND METALLURGICAL PROPERTIES WILL BESPECIFIED FOR GOVERNMENT Q AR (QUALITY ASSURANCE REPRESENTATIVES) TO INSURE THE HIGHEST POSSIBLE DEGREE OF QUALITY AND RELIABILITY OF THESE PARTS BEING DELIVERED UNDER NAVICP CONTRACTS. 2 total characteristics are documented in the Federal Logistics Information System.