The Spark Plug, cataloged under National Stock Number 2920-01-038-1339, is classified within Federal Supply Class 2920 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Allied-Signal Inc Autolite Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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 | 2920-01-038-1339 |
| Primary Part Number | 664 |
| Item Name | Spark Plug |
| FSC / FSG | 2920 / 29 — No Item Name Available |
| Manufacturer | Allied-Signal Inc Autolite Div |
| Status | ACTIVE |
| DC Resistance Rating in Ohms | 10000.0 NOMINAL |
| Nondefinitive Spec/std Data | 3 TYPE AND A CLASS |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Reach Length | 0.460 INCHES NOMINAL IN |
| Electrode Style | SINGLE GROUND ELECTRODE (SEE ALSO STYLE 1) |
| Height Above Mounting Surface | 2.030 INCHES NOMINAL IN |
| Seat Major Diameter | 0.625 INCHES NOMINAL IN |
| Pressure Rating | 275.0 POUNDS PER SQUARE INCH (PSI) NOMINAL MEAN EFFECTIVE LBS |
| Body Style | UNSHIELDED, SOLID POST, TAPERED SEAT |
| Usage Design | ENGINE OTHER THAN AIRCRAFT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| W-S-506 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ARF32-6 | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| ARF32-6 | Ford Motor Company (USA) |
| 664 PRIMARY | Allied-Signal Inc Autolite Div (USA) |
NSN 2920-01-038-1339 is a Spark Plug, manufactured by Allied-Signal Inc Autolite Div, classified under FSC 2920 (No Item Name Available). Status: active.
NSN 2920-01-038-1339 has 4 cross-referenced part numbers: W-S-506 (Federal Specifications Promulgated by General Services Administration Washington DC), ARF32-6 (Ford Motor Co Ford Parts and Service Div Government Part Sales), ARF32-6 (Ford Motor Company), 664 (Allied-Signal Inc Autolite Div).
There are 12 known substitutes for 2920-01-038-1339: 5965-00-044-4489, 3110-00-100-0671, 5130-00-117-4743 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 664: DC Resistance Rating in Ohms: 10000.0 NOMINAL; Special Features: EXTRA WIDE GAP 0.060 IN. IN; Nondefinitive Spec/std Data: 3 TYPE AND A CLASS; Width Across Flats: 0.625 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.