The Gage Unit,engine, cataloged under National Stock Number 6620-00-531-2974, is classified within Federal Supply Class 6620 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6620-00-531-2974 |
| Primary Part Number | 10638A |
| Item Name | Gage Unit,engine |
| FSC / FSG | 6620 / 66 — No Item Name Available |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Scale Name | OIL PRESSURE AND FUEL PRESSURE AND OIL TEMPERATURE |
| Scale Marking | LETTERS AND NUMERALS AND LINED INCREMENTS |
| Scale Marking Transparency | FLUORESCENT AND NONLUMINOUS |
| Reference Number Differentiating Characteristics | EXCEPT FUEL PRESSURE SCALE MODIFIED TO READ 0 TO 25 PSI |
| Electrical Connection Identifying Number | PART NO. AND10066-14S-2P |
| Scale Quantity | 3 |
| Contact Quantity | 4 |
| Scale Smallest Increment Graduation | 10 PSI; 1 PSI; 10 DEG |
| Mechanical Connection Type | INTERNAL PIPE |
| Contact Type | PIN |
| Mechanical Connection Size | 1/8 IN. DIA IN |
| Voltage in Volts | 12.0 OR 24.0 |
| Temp Indicator Device | ELECTRICAL |
| Current Type | DC |
| Mechanical Connection Quantity | 3 |
| Mounting Method | PANEL |
| Connector Controlling Agency | ANA |
| Electrical Connection Quantity | 1 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 6620-00-531-2974 is a Gage Unit,engine, manufactured by Prestolite Electric Inc, classified under FSC 6620 (No Item Name Available). Status: active.
NSN 6620-00-531-2974 has 4 cross-referenced part numbers: 10638A (Prestolite Electric Inc), 10638A (Prestolite Electric Inc), AN5773-1A (Aeronautical Standards Group Dept of Navy and Air Force), 10638A (Liftec Inc Div Liftec, Inc.).
There are 7 known substitutes for 6620-00-531-2974: 6620-00-224-1333, 6620-00-224-1335, 6620-00-229-0652 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 10638A: Scale Name: OIL PRESSURE AND FUEL PRESSURE AND OIL TEMPERATURE; Overall Height: 3.250 INCHES NOMINAL IN; Overall Width: 3.250 INCHES NOMINAL IN; Scale Marking: LETTERS AND NUMERALS AND LINED INCREMENTS. 21 total characteristics are documented in the Federal Logistics Information System.