The Brush,electrical Contact, cataloged under National Stock Number 5977-01-236-3269, 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 Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-01-236-3269 |
| Primary Part Number | 20-5900 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Length | 0.391 INCHES NOMINAL IN |
| Body Style | RECTANGULAR COMMUTATOR |
| Radius | 0.266 INCHES NOMINAL IN |
| Top Style | FLAT |
| Style Designator | ONE PIECE |
| Groove Depth | 0.031 INCHES NOMINAL IN |
| Outer Edge to Groove Edge Distance | 0.076 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| Basic Shape Style | RECTANGULAR GROOVE IN LEFT SIDE |
| Contact Face Style | CONCAVE |
| Width | 0.183 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Material | CARBON |
| Groove Width | 0.031 INCHES NOMINAL IN |
| Thickness | 0.183 INCHES MINIMUM AND 0.185 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 |
|---|---|
| 20-5900 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 20-5900 | 5/9 Secondary reference Parker-Hannifin Corporation Div Gas Turbine Fuel Systems |
NSN 5977-01-236-3269 is a Brush,electrical Contact, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-01-236-3269 has 1 manufacturer part number on file: 20-5900 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-279-8750. Verify interchangeability with system specifications before substitution.
Key specifications for 20-5900: Length: 0.391 INCHES NOMINAL IN; Body Style: RECTANGULAR COMMUTATOR; Radius: 0.266 INCHES NOMINAL IN; Top Style: FLAT. 13 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.