The Brush,electrical Contact, cataloged under National Stock Number 5977-01-595-2227, is classified within Federal Supply Class 5977 (Electrical Contact Brushes and Electrodes) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Contour Metrological & Manufacturing, Inc Div Cmm Optic. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-595-2227 |
| Primary Part Number | BTM18-L |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Contour Metrological & Manufacturing, Inc Div Cmm Optic |
| Status | ACTIVE |
| Outer Edge to Slot Edge Distance | 0.041 INCHES NOMINAL IN |
| Largest Outside Diameter | 0.942 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL |
| Distance From Center of Hole to Outside Edge | 0.8593 INCHES MINIMUM AND 0.8595 INCHES MAXIMUM IN |
| Style Designator | ONE PIECE |
| Spring Free Length | 1.717 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN |
| Hole Diameter | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| 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 |
|---|---|
| BTM18-L PRIMARY | Contour Metrological & Manufacturing, Inc Div Cmm Optic (USA) |
| Reference | Meaning |
|---|---|
| BTM18-L | 3/9 Design control — primary reference General Dynamics Global Imaging Technologies, Inc. Div Global Imaging Technologies |
NSN 5977-01-595-2227 is a Brush,electrical Contact, manufactured by Contour Metrological & Manufacturing, Inc Div Cmm Optic, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-595-2227 has 1 manufacturer part number on file: BTM18-L (Contour Metrological & Manufacturing, Inc Div Cmm Optic).
Key specifications for BTM18-L: Outer Edge to Slot Edge Distance: 0.041 INCHES NOMINAL IN; Largest Outside Diameter: 0.942 INCHES NOMINAL IN; Body Style: CYLINDRICAL; Distance From Center of Hole to Outside Edge: 0.8593 INCHES MINIMUM AND 0.8595 INCHES MAXIMUM IN. 7 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.