The Brush,electrical Contact, cataloged under National Stock Number 5977-00-238-9183, 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 Lockheed Martin Corporation Div Rms. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-238-9183 |
| Primary Part Number | 11226-43 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Length | 0.968 INCHES MINIMUM AND 1.032 INCHES MAXIMUM IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Terminal Slot Width | 0.156 INCHES NOMINAL IN |
| Top Style | FLAT WITH LEFT EDGE BEVELED |
| Shunt Position Designator | 2 |
| Style Designator | ONE PIECE |
| Material Document and Classification | SPEER CARBON CO,GR E23 MFR REF SINGLE MATERIAL RESPONSE |
| Brush Shunt Length | 2.500 INCHES MINIMUM AND 2.625 INCHES MAXIMUM SINGLE SHUNT IN |
| Contact Face Style | FLAT |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Width | 0.496 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Material | ELECTROGRAPHITIC |
| Terminal Type and Quantity | 1 STRAIGHT W/SLOT |
| Thickness | 0.246 INCHES MINIMUM AND 0.250 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 |
|---|---|
| 11226-43 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| S21752 PRIMARY | Helwig Carbon Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 11226-43 | 5/9 Secondary reference Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies |
NSN 5977-00-238-9183 is a Brush,electrical Contact, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-238-9183 has 2 manufacturer part numbers on file: 11226-43 (Lockheed Martin Corporation Div Rms), S21752 (Helwig Carbon Products Inc).
Key specifications for 11226-43: Length: 0.968 INCHES MINIMUM AND 1.032 INCHES MAXIMUM IN; Body Style: RECTANGULAR COMMUTATOR; Terminal Slot Width: 0.156 INCHES NOMINAL IN; Top Style: FLAT WITH LEFT EDGE BEVELED. 14 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.