The Valve,positive Crankcase Ventila, cataloged under National Stock Number 2990-01-025-0648, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Trw Inc Replacement Parts Div. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-025-0648 |
| Primary Part Number | PV657 |
| Item Name | Valve,positive Crankcase Ventila |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Trw Inc Replacement Parts Div |
| Status | ACTIVE |
| Body Material | STEEL |
| Connection Type | THREADED EXTERNAL PIPE |
| Thread Series Designator | NPT |
| Design Form | STRAIGHT |
| Nominal Thread Size | 0.250 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| PV657 PRIMARY | Trw Inc Replacement Parts Div (USA) |
| C4AZ-6A666A | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| C7OZ-6A666A | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| CV755C | General Motors Llc Dba General Motors (USA) |
| C7OA-6A666B | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| FV157 PRIMARY | Honeywell International Inc Dba Honeywell Div Consumer Products Group (USA) |
| 24110 | Echlin Inc (USA) |
| PV657 | C E Niehoff & Co (USA) |
| C7OA-6A666B | Ford Motor Company (USA) |
| C4AZ-6A666A | Ford Motor Company (USA) |
| C7OZ-6A666A | Ford Motor Company (USA) |
| 2-810 | Echlin Inc (USA) |
| 6487088 | Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA) |
| CV755C | General Motors Llc Dba General Motors Llc (USA) |
| 6487088 | General Motors Llc Dba General Motors Llc (USA) |
NSN 2990-01-025-0648 is a Valve,positive Crankcase Ventila, manufactured by Trw Inc Replacement Parts Div, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-025-0648 has 15 cross-referenced part numbers: PV657 (Trw Inc Replacement Parts Div), C4AZ-6A666A (Ford Motor Co Ford Parts and Service Div Government Part Sales), C7OZ-6A666A (Ford Motor Co Ford Parts and Service Div Government Part Sales), CV755C (General Motors Llc Dba General Motors), C7OA-6A666B (Ford Motor Co Ford Parts and Service Div Government Part Sales) and 10 more.
There are 12 known substitutes for 2990-01-025-0648: 6610-00-133-7868, 5306-00-151-2665, 5136-00-189-3120 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for PV657: Body Material: STEEL; Connection Type: THREADED EXTERNAL PIPE; Thread Series Designator: NPT; Design Form: STRAIGHT. 5 total characteristics are documented in the Federal Logistics Information System.