The Spark Plug, cataloged under National Stock Number 2920-00-308-2660, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Ford Motor Co General Parts Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2920-00-308-2660 |
| Primary Part Number | TT15 |
| Item Name | Spark Plug |
| FSC / FSG | 2920 / 29 — No Item Name Available |
| Manufacturer | Ford Motor Co General Parts Division |
| Status | CANCELLED |
| Body Style | UNSHIELDED,SOLID OR THREADED POST,GASKET SEAT |
| Thread Size and Series/type Designator | 7/8-18 UNS BASE |
| Nondefinitive Spec/std Data | 3 TYPE AND B CLASS |
| Usage Design | ENGINE OTHER THAN AIRCRAFT |
| Seat Major Diameter | 1.125 INCHES MAXIMUM IN |
| Pressure Rating | 100.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS |
| Reach Length | 0.625 INCHES NOMINAL IN |
| Width Across Flats | 0.938 INCHES NOMINAL IN |
| Electrode Style | SINGLE FLAT SHELL GROUND ELECTRODE (SEE ALSO STYLE 4) |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| TT15 PRIMARY | Ford Motor Co General Parts Division (USA) |
| W89D | Champion Aviation Inc Automotive Div (USA) |
| 18 | General Motors Llc Dba General Motors (USA) |
| 143H0T | Federal Standards Promulgated by General Services Administration Washington DC |
| W89D | Champion Aerospace Llc (USA) |
| 258999R93 | Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA) |
| WS506 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 31536DA | Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA) |
| 44 | Champion Aviation Inc (USA) |
| 17-7624-700-220 | Chief of Engineers Dept of Army (USA) |
| 32713D | Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA) |
| 18 | General Motors Llc Dba General Motors Llc (USA) |
NSN 2920-00-308-2660 is a Spark Plug, manufactured by Ford Motor Co General Parts Division, classified under FSC 2920 (No Item Name Available). Status: cancelled.
NSN 2920-00-308-2660 has 12 cross-referenced part numbers: TT15 (Ford Motor Co General Parts Division), W89D (Champion Aviation Inc Automotive Div), 18 (General Motors Llc Dba General Motors), 143H0T (Federal Standards Promulgated by General Services Administration Washington DC), W89D (Champion Aerospace Llc) and 7 more.
There are 2 known substitutes for 2920-00-308-2660: 5960-00-375-9017, 6515-01-547-5154. Verify interchangeability with system specifications before substitution.
Key specifications for TT15: Body Style: UNSHIELDED,SOLID OR THREADED POST,GASKET SEAT; Thread Size and Series/type Designator: 7/8-18 UNS BASE; Nondefinitive Spec/std Data: 3 TYPE AND B CLASS; Usage Design: ENGINE OTHER THAN AIRCRAFT. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 2920-00-308-2660 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.