The Brush,electrical Contact, cataloged under National Stock Number 5977-00-799-8136, 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 Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5977-00-799-8136 |
| Primary Part Number | 2-1257 |
| Item Name | Brush,electrical Contact |
| FSC / FSG | 5977 / 59 — No Item Name Available |
| Manufacturer | Kearfott Corporation Div Guidance and Navigation Division |
| Status | CANCELLED |
| Largest Outside Diameter | 0.175 INCHES NOMINAL IN |
| Contact Face Style | CONCAVE |
| Shunt Insulation Provision and Quantity | 1 UNINSULATED |
| Pressure Spring Type and Quantity | 1 CYLINDRICAL |
| Terminal Type and Quantity | 1 ROUND CAP |
| Brush Shunt Length | 0.500 INCHES NOMINAL SINGLE SHUNT IN |
| Style Designator | ONE PIECE |
| Material Document and Classification | PURE CARBON CO INC,GRADE L560 MFR REF SINGLE MATERIAL RESPONSE |
| Material | ELECTROGRAPHITIC |
| Body Style | RECTANGULAR COMMUTATOR |
| Thickness | 0.185 INCHES NOMINAL IN |
| Shunt Position Designator | 5 |
| Width | 0.185 INCHES NOMINAL IN |
| Length | 0.469 INCHES NOMINAL IN |
| Radius | 0.297 INCHES NOMINAL IN |
| Spring Free Length | 1.250 INCHES NOMINAL IN |
| Terminal Diameter | 0.262 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-1257 PRIMARY | Kearfott Corporation Div Guidance and Navigation Division (USA) |
| 7004732 | General Electric Co Specialty Motor Dept (USA) |
| 2-1256 | Titan Corp the (USA) |
| 591D24-2 | Cardwell Condenser Corp Lapointe-Admiral Div (USA) |
| 2-1257 | Titan Corp the (USA) |
| 7004732G1 | Navcom Defense Electronics, Inc. (USA) |
NSN 5977-00-799-8136 is a Brush,electrical Contact, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 5977 (No Item Name Available). Status: cancelled.
NSN 5977-00-799-8136 has 6 cross-referenced part numbers: 2-1257 (Kearfott Corporation Div Guidance and Navigation Division), 7004732 (General Electric Co Specialty Motor Dept), 2-1256 (Titan Corp the), 591D24-2 (Cardwell Condenser Corp Lapointe-Admiral Div), 2-1257 (Titan Corp the) and 1 more.
There are 11 known substitutes for 5977-00-799-8136: 5110-00-194-5982, 5110-00-199-7292, 5999-00-368-1054 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-1257: Largest Outside Diameter: 0.175 INCHES NOMINAL IN; Contact Face Style: CONCAVE; Shunt Insulation Provision and Quantity: 1 UNINSULATED; Pressure Spring Type and Quantity: 1 CYLINDRICAL. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 5977-00-799-8136 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.