The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-159-2251, is classified within Federal Supply Class 5977 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is J H Emerson Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5977-00-159-2251 |
| Primary Part Number | 55-30W |
| Item Name | Holder,electrical Contact Brush |
| FSC / FSG | 5977 / 59 — No Item Name Available |
| Manufacturer | J H Emerson Company |
| Status | ACTIVE |
| Mounting Facility Quantity | 1 |
| Furnished Items and Quantity | 1 BRUSH |
| Brush Spring Adjustability | NONADJUSTABLE |
| Overall Thickness | 0.688 INCHES NOMINAL IN |
| Brush Quantity Accommodated Per Holder | 1 |
| Inside Thickness | 0.438 INCHES NOMINAL IN |
| Style Designator | RECTANGLE |
| Brush Pressure Spring Type Accommodated | HELICAL COMPRESSION |
| Inside Length | 1.062 INCHES NOMINAL IN |
| Mounting Facility | CLAMP |
| Inside Width | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY BOX |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 55-30W | J H Emerson Company (USA) |
NSN 5977-00-159-2251 is a Holder,electrical Contact Brush, manufactured by J H Emerson Company, classified under FSC 5977 (No Item Name Available). Status: active.
NSN 5977-00-159-2251 has 1 cross-referenced part number: 55-30W (J H Emerson Company).
There are 5 known substitutes for 5977-00-159-2251: 4820-00-174-2600, 4820-00-566-1281, 4820-01-237-2796 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 55-30W: Overall Width: 0.812 INCHES NOMINAL IN; Mounting Facility Quantity: 1; Furnished Items and Quantity: 1 BRUSH; Brush Spring Adjustability: NONADJUSTABLE. 14 total characteristics are documented in the Federal Logistics Information System.