The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-660-8581, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-660-8581 |
| Primary Part Number | 234-0999-00 |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — Electrical Contact Brushes and Electrodes |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Inside Width | 0.279 INCHES NOMINAL IN |
| Top Thread Location | EXTERNAL |
| Thread Length | 0.156 INCHES NOMINAL IN |
| Overall Thickness | 0.624 INCHES NOMINAL IN |
| Style Designator | ROUND OFFSET |
| Brush Quantity Accommodated Per Holder | 1 |
| Mounting Facility | UNTHREADED HOLES |
| Inside Thickness | 0.129 INCHES NOMINAL IN |
| Material | COPPER ALLOY BOX SUPPORTING |
| Thread Size and Series/type Designator | 0.437-20 UNF |
| 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 |
|---|---|
| 234-0999-00 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 4-1639 | 5/9 Secondary reference Titan Corp the |
NSN 5977-00-660-8581 is a Holder,electrical Contact Brush, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5977, Electrical Contact Brushes and Electrodes. Status: active.
NSN 5977-00-660-8581 has 1 manufacturer part number on file: 234-0999-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
3 possible matches (shared part number, not a government interchangeability claim): 2990-01-110-8263, 5962-01-203-8627, 6150-01-491-6820. Verify interchangeability with system specifications before substitution.
Key specifications for 234-0999-00: Mounting Facility Quantity: 1; Inside Width: 0.279 INCHES NOMINAL IN; Top Thread Location: EXTERNAL; Thread Length: 0.156 INCHES NOMINAL IN. 11 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.