PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

643-1Indicator,flow

Ametek Inc Schutte and Koerting Div · NSN 6680-00-085-7589 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-085-7589 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-085-7589. Primary manufacturer part number: 643-1.
Features
  • Indicator,flow — FSC 6680
  • 2 verified cross-references
  • Primary manufacturer: Ametek Inc Schutte and Koerting Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,flow, cataloged under National Stock Number 6680-00-085-7589, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek Inc Schutte and Koerting Div. This item has 2 commercial cross-references from 2 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
NSN6680-00-085-7589
Primary Part Number643-1
Item NameIndicator,flow
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerAmetek Inc Schutte and Koerting Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-137-4728990-016-91 INTERCHANGEABLE
Transformer,electri
Ametek Programmable Power, Inc.
3110-00-156-5451018-7804 INTERCHANGEABLE
Bearing,ball,annular
Marathon Le Tourneau Co
5310-00-209-1521 INTERCHANGEABLE
Washer,lock
5970-00-215-38941069981 INTERCHANGEABLE
Insulator,field Con
Chrysler Realty Company Llc Dba Daimler Chrysler
6130-00-235-1000SM-D-96985 INTERCHANGEABLE
Vibrator,interrupter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5945-00-349-7028643-1 INTERCHANGEABLE
Relay,solid State
Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/
4820-00-446-3237401341ITEM89 INTERCHANGEABLE
Valve,angle
Johnson Controls Navy Systems, Llc
5950-00-583-452210-60030-2 INTERCHANGEABLE
Transformer,power Autotransforme
The Boeing Company Div Defense
4820-00-662-883964-31 INTERCHANGEABLE
Seat,valve
Dresser Industries Inc Leroi Div
5930-00-904-67246431-2-100 INTERCHANGEABLE
Switch,pressure
Horizon Aerospace Llc Dba Transicoil
Cross-Reference Index
Part NumberManufacturer
21C1532-11 General Electric Company (USA)
643-1 PRIMARY Ametek Inc Schutte and Koerting Div (USA)
Related Parts
5950-00-137-4728INTERCHANGEABLE
TRANSFORMER,ELECTRI
990-016-91
3110-00-156-5451INTERCHANGEABLE
BEARING,BALL,ANNULAR
018-7804
5310-00-209-1521INTERCHANGEABLE
WASHER,LOCK
5970-00-215-3894INTERCHANGEABLE
INSULATOR,FIELD CON
1069981
6130-00-235-1000INTERCHANGEABLE
VIBRATOR,INTERRUPTER
SM-D-96985
5945-00-349-7028INTERCHANGEABLE
RELAY,SOLID STATE
643-1
4820-00-446-3237INTERCHANGEABLE
VALVE,ANGLE
401341ITEM89
5950-00-583-4522INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
10-60030-2
4820-00-662-8839INTERCHANGEABLE
SEAT,VALVE
64-31
5930-00-904-6724INTERCHANGEABLE
SWITCH,PRESSURE
6431-2-100
6640-01-051-4944INTERCHANGEABLE
TEST TUBE,BLOOD COLLECTING
6431
5935-01-296-8745INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL
6431

Frequently Asked Questions

What is NSN 6680-00-085-7589?

NSN 6680-00-085-7589 is a Indicator,flow, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-085-7589?

NSN 6680-00-085-7589 has 2 cross-referenced part numbers: 21C1532-11 (General Electric Company), 643-1 (Ametek Inc Schutte and Koerting Div).

What NSN replaces 6680-00-085-7589?

There are 12 known substitutes for 6680-00-085-7589: 5950-00-137-4728, 3110-00-156-5451, 5310-00-209-1521 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 643-1?

Key specifications for 643-1: End Item Identification: ENGINE MODEL T58-GE-10 ANDT58-GE-16. 1 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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