PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8DJ81CBD4Indicator,electrical Tachometer

Ametek Inc Div Aerospace and Defense · NSN 6620-01-157-9266 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-01-157-9266 — this item is cataloged by the U.S. Government under National Stock Number 6620-01-157-9266. Primary manufacturer part number: 8DJ81CBD4.
Features
  • Indicator,electrical Tachometer — FSC 6620
  • Electrical Connection Quantity: 1
  • Scale Range: +0.1 TO 110.0 PERCENT SINGLE INDICATOR SINGLE SCALE
  • Individual Marking: PERCENT RPM
  • Dial Outside Diameter: 2.000 INCHES NOMINAL IN
  • Electrical Connection Identifying Number: MS33678-10SL-3P
  • Supplementary Features: T.O. 1C-135(K)-4 FIG 584
  • Pointer Type: INDICATING SINGLE POINTER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,electrical Tachometer, cataloged under National Stock Number 6620-01-157-9266, is classified within Federal Supply Class 6620 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek Inc Div Aerospace and Defense. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6620-01-157-9266
Primary Part Number8DJ81CBD4
Item NameIndicator,electrical Tachometer
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerAmetek Inc Div Aerospace and Defense
StatusACTIVE
Electrical Connection Quantity1
Scale Range+0.1 TO 110.0 PERCENT SINGLE INDICATOR SINGLE SCALE
Individual MarkingPERCENT RPM
Dial Outside Diameter2.000 INCHES NOMINAL IN
Electrical Connection Identifying NumberMS33678-10SL-3P
Supplementary FeaturesT.O. 1C-135(K)-4 FIG 584
Pointer TypeINDICATING SINGLE POINTER
Length4.250 INCHES NOMINAL IN
Presentation TypeDIAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6620-00-515-45418DJ43AAM INTERCHANGEABLE
Indicator,electrical Tachometer
Ametek Inc Div Aerospace and Defense
6620-00-515-4542 INTERCHANGEABLE
Indicator,electrical Tachometer
6620-00-526-50031559-4-03 INTERCHANGEABLE
Indicator,electrical Tachometer
Elbitamerica, Inc.
6620-00-526-66271560U4-03 INTERCHANGEABLE
Indicator,electrical Tachometer
Elbitamerica, Inc.
6620-00-556-19761559C4-06 INTERCHANGEABLE
Indicator,electrical Tachometer
Elbitamerica, Inc.
6620-00-557-3023 INTERCHANGEABLE
Indicator,electrical Tachometer
6620-00-621-01438DJ81CAA1 INTERCHANGEABLE
Indicator,electrical Tachometer
Ametek Inc Div Aerospace and Defense
6620-00-959-661434102C1C4-1C1 INTERCHANGEABLE
Indicator,electrical Tachometer
Honeywell International Inc. Dba Honeywell International
6620-00-969-39728DJ81CAA2 INTERCHANGEABLE
Indicator,electrical Tachometer
Ametek Inc Div Aerospace and Defense
6620-01-157-92673571261-8102 INTERCHANGEABLE
Indicator,electrical Tachometer
Honeywell International Inc. Dba Honeywell International
Cross-Reference Index
Part NumberManufacturer
6620PL0802428 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MIL-I-25623 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
8DJ81CBD4 PRIMARY Ametek Inc Div Aerospace and Defense (USA)
Related Parts
6620-00-515-4541INTERCHANGEABLE
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8DJ43AAM
6620-00-515-4542INTERCHANGEABLE
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6620-00-526-5003INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
1559-4-03
6620-00-526-6627INTERCHANGEABLE
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1560U4-03
6620-00-556-1976INTERCHANGEABLE
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1559C4-06
6620-00-557-3023INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
6620-00-621-0143INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
8DJ81CAA1
6620-00-959-6614INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
34102C1C4-1C1
6620-00-969-3972INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
8DJ81CAA2
6620-01-157-9267INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
3571261-8102
6620-01-159-4330INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
3571281-8102
6620-01-191-9514INTERCHANGEABLE
INDICATOR,ELECTRICAL TACHOMETER
100-0034-11

Frequently Asked Questions

What is NSN 6620-01-157-9266?

NSN 6620-01-157-9266 is a Indicator,electrical Tachometer, manufactured by Ametek Inc Div Aerospace and Defense, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-01-157-9266?

NSN 6620-01-157-9266 has 3 cross-referenced part numbers: 6620PL0802428 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-I-25623 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 8DJ81CBD4 (Ametek Inc Div Aerospace and Defense).

What NSN replaces 6620-01-157-9266?

There are 12 known substitutes for 6620-01-157-9266: 6620-00-515-4541, 6620-00-515-4542, 6620-00-526-5003 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8DJ81CBD4?

Key specifications for 8DJ81CBD4: Electrical Connection Quantity: 1; Scale Range: +0.1 TO 110.0 PERCENT SINGLE INDICATOR SINGLE SCALE; Individual Marking: PERCENT RPM; Dial Outside Diameter: 2.000 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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