The Governor,overspeed Trip, cataloged under National Stock Number 2990-01-156-4864, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Qcc Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-156-4864 |
| Primary Part Number | SA-0503-A |
| Item Name | Governor,overspeed Trip |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Qcc Llc |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 12.0 DC |
| General Characteristics Item Description | 5.560 IN. O/A LENGTH; TRIP POINT SET AT 2275 RPM; 12 VOLTS DC; 10 AMPS RESISTIVE,8 AMPS INDUCTIVE;MINUS 65F TO+250F OPERATING TEMPERATURE;ENCLOSURE: DUST PROOF AND MOISTURE SEALED IN |
| Special Test Features | EQUIPPED WITH TONGUE DRIVE SHAFT OF 0.152" DIAMETER |
| Supplementary Features | VIBRATION: 4G'S AT 9 TO 200HZ G |
| Specification/standard Data | 96906-DOD-STD-100 GOVERNMENT STANDARD |
| Special Markings | MARK IAW MIL-STD-130 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SA-0503-A PRIMARY | Qcc Llc (USA) |
| Reference | Meaning |
|---|---|
| 8126385 | 1/2 Source control — Government-approved source U.S. Government activity |
| 8126385 98749 | 5/9 Secondary reference Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 8126385 | 5/9 Secondary reference U.S. Government activity |
| SA-0503-A | 5/9 Secondary reference Technetics Group Chicago Llc |
| SA-0503-A | 5/9 Secondary reference Woodward Controls Inc. |
NSN 2990-01-156-4864 is a Governor,overspeed Trip, manufactured by Qcc Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-156-4864 has 1 manufacturer part number on file: SA-0503-A (Qcc Llc).
Key specifications for SA-0503-A: Overall Height: 2.59 INCHES NOMINAL IN; Voltage in Volts and Current Type: 12.0 DC; General Characteristics Item Description: 5.560 IN. O/A LENGTH; TRIP POINT SET AT 2275 RPM; 12 VOLTS DC; 10 AMPS RESISTIVE,8 AMPS INDUCTIVE;MINUS 65F TO+250F OPERATING TEMPERATURE;ENCLOSURE: DUST PROOF AND MOISTURE SEALED IN; Special Test Features: EQUIPPED WITH TONGUE DRIVE SHAFT OF 0.152" DIAMETER. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.