Electrical Connection Identifying Number: MS 33678-20-7P
Identification
NSN: 6620-00-474-6952
NIIN: 004746952
FSC: 6620 — Engine Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Indicator,thrust,engine Testing, cataloged under National Stock Number 6620-00-474-6952, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6620-00-474-6952
Item Name
Indicator,thrust,engine Testing
FSC / FSG
6620 / 66 — Engine Instruments
Status
ACTIVE
Phase
SINGLE
Contact Type
PIN
Length
3.593 INCHES NOMINAL IN
Current Type
AC
Electrical Connection Quantity
1
DC Voltage Rating
26.0 VOLTS NOMINAL
Electrical Connection Identifying Number
MS 33678-20-7P
Contact Quantity
8
Illumination Color Generation Method
FLUORESCENCE
Frequency Rating
400.0 HERTZ NOMINAL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1650-00-509-4828POSSIBLE MATCH
VALVE,INNER,REGULATING
Possible match (shared part number)
6620-00-801-8885SRDS-15APOSSIBLE MATCH
INDICATOR,RATIO,ENGINE PRESSURE
Possible match (shared part number)Ametek, Inc. Div Aerospace & Defense
5930-00-899-8665POSSIBLE MATCH
SWITCH,SENSITIVE
Possible match (shared part number)
7450-00-984-0643POSSIBLE MATCH
RECORDER-REPRODUCER,SOUND
Possible match (shared part number)
5930-01-175-4631MR-2POSSIBLE MATCH
SWITCH,THERMOSTATIC
Possible match (shared part number)The Electric Heater Co Dba Hubbell Electric Heater Co.
5450-01-535-7955MR-2POSSIBLE MATCH
PANEL,REVETMENT
Possible match (shared part number)Engineers, U.s. Army Corps of Dba Engineer Research & Development Center
4030-01-591-7790MR-2POSSIBLE MATCH
ANCHOR,GUY
Possible match (shared part number)Foresight Products, Llc
6260-01-626-0073POSSIBLE MATCH
LANTERN,MULTI FUEL SET
Possible match (shared part number)
5840-01-660-7361MR2POSSIBLE MATCH
TARGET,RADAR
Possible match (shared part number)Nw Bend Boats, Llc Dba North River Boats
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MR2
2/2Government specification standardization
U.S. Government activity
SRDS-15C
5/1Secondary reference
Ametek, Inc. Div Aerospace & Defense
MR72
5/9Secondary reference
U.S. Government activity
MIL-I-25482
4/1Identification reference
U.S. Government activity
Related Parts
1650-00-509-4828POSSIBLE MATCH
VALVE,INNER,REGULATING
6620-00-801-8885POSSIBLE MATCH
INDICATOR,RATIO,ENGINE PRESSURE
SRDS-15A
5930-00-899-8665POSSIBLE MATCH
SWITCH,SENSITIVE
7450-00-984-0643POSSIBLE MATCH
RECORDER-REPRODUCER,SOUND
5930-01-175-4631POSSIBLE MATCH
SWITCH,THERMOSTATIC
MR-2
5450-01-535-7955POSSIBLE MATCH
PANEL,REVETMENT
MR-2
4030-01-591-7790POSSIBLE MATCH
ANCHOR,GUY
MR-2
6260-01-626-0073POSSIBLE MATCH
LANTERN,MULTI FUEL SET
5840-01-660-7361POSSIBLE MATCH
TARGET,RADAR
MR2
Frequently Asked Questions
What is NSN 6620-00-474-6952?
NSN 6620-00-474-6952 is a Indicator,thrust,engine Testing, classified under FSC 6620, Engine Instruments. Status: active.
What NSN replaces 6620-00-474-6952?
9 possible matches (shared part number, not a government interchangeability claim): 1650-00-509-4828, 6620-00-801-8885, 5930-00-899-8665. Verify interchangeability with system specifications before substitution.
What are the specifications of 6620-00-474-6952?
Key specifications for 6620-00-474-6952: Phase: SINGLE; Contact Type: PIN; Length: 3.593 INCHES NOMINAL IN; Current Type: AC. 10 specifications are documented in the U.S. Government catalog.
Is NSN 6620-00-474-6952 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.