The Fan,tubeaxial, cataloged under National Stock Number 4140-01-322-8122, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-322-8122 |
| Primary Part Number | L1-2A1W6-NMVM |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Rotation Direction for Which Designed | CLOCKWISE |
| Reference Number Differentiating Characteristics | MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION |
| Air Flow Rate | 500.0 CUBIC FEET PER MINUTE NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L1-2A1W6-NMVM | Naval Inventory Control Point Mechanicsburg (USA) |
| R1-6520-L1/2A1W6-NMVM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| L1-2A1W6-NM | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| R1-6520-L1/2A1W6-NM | 3/1 Design control — primary reference Fm Af, Llc Dba American Fan Company |
| R1-6520-L1/2A1W6-NM | 3/9 Design control — primary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| R1-12489 CD-3553VM | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
| L1-2A1W6-NM | 5/1 Secondary reference Fm Af, Llc Dba American Fan Company |
NSN 4140-01-322-8122 is a Fan,tubeaxial, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-322-8122 has 2 manufacturer part numbers on file: L1-2A1W6-NMVM (Naval Inventory Control Point Mechanicsburg), R1-6520-L1/2A1W6-NMVM (Naval Inventory Control Point Mechanicsburg).
Key specifications for L1-2A1W6-NMVM: End Item Identification: FANS,AIR CIRCULATORS,AND BLOWER EQUIPMENT; Rotation Direction for Which Designed: CLOCKWISE; Reference Number Differentiating Characteristics: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION; Air Flow Rate: 500.0 CUBIC FEET PER MINUTE NOMINAL. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.