The Guard,fan Impeller, cataloged under National Stock Number 4140-01-615-1633, 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 Mechatronics, Inc. Div National Precision Bearing. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-615-1633 |
| Primary Part Number | SGR-31 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Mechatronics, Inc. Div National Precision Bearing |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4140-01-615-1633 is a Guard,fan Impeller, manufactured by Mechatronics, Inc. Div National Precision Bearing, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-615-1633 has 2 manufacturer part numbers on file: SRG-31 (Carlton-Bates Company Dba Carlton Bates Co Div Carlton-Bates Little Rock), SGR-31 (Mechatronics, Inc. Div National Precision Bearing).
Key specifications for SGR-31: Special Features: THIS NSN IS FOR SSM-STAMS-188, WHICH UPDATES THE FRONT DOOR FAN ASSEMBLIES OF THE G4 EQUIPMENT RACKS THAT HAVE ALREADY BEEN DEPLOYED, BY INSTALLING AN ADDITIONAL FAN BLADE GUARD ON THE FAN SIDE THAT FACES THE PERFORATED RACK FRONT DOOR MOUNTED ON THE FAN ASSEMBLIES. THIS GRILL GUARD WILL PREVENT INADVERTENT PLACEMENT OF A FINGER BEHIND THE FAN ASSEMBLY,KEEPING THE FAN BLADE FROM HITTING A FINGER. SGR-31 IS THE CHROME FAN FINGER GRILL/GUARD THAT FITS THE FRAM SIZE OF THE 80MM SQUARE MECHATRONICS UF80A12-BTHR FAN MM; Part Name Assigned by Controlling Agency: FAN GRILL GUARD; End Item Identification: STANDARD TERMINAL AUTOMATION REPLACEMENT SYSTEM (STARS). 0 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.