PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

300CIndicator,pressure

Setra Systems, Inc. Dba Setra, Inc. · NSN 6685-01-152-1781 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-152-1781 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-152-1781. Primary manufacturer part number: 300C.
Features
  • Indicator,pressure — FSC 6685
  • Current Type: AC
  • Frequency Rating: 60.0 HERTZ NOMINAL
  • Phase: SINGLE
  • Electrical Connection Quantity: 2
  • Height: 3.000 INCHES NOMINAL IN
  • Width: 6.000 INCHES NOMINAL IN
  • Length: 8.000 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,pressure, cataloged under National Stock Number 6685-01-152-1781, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Setra Systems, Inc. Dba Setra, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-152-1781
Primary Part Number300C
Item NameIndicator,pressure
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Setra, Inc.
StatusACTIVE
Current TypeAC
Frequency Rating60.0 HERTZ NOMINAL
PhaseSINGLE
Electrical Connection Quantity2
Height3.000 INCHES NOMINAL IN
Width6.000 INCHES NOMINAL IN
Length8.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5985-00-433-3945927058-1 INTERCHANGEABLE
Dummy Load,electrical
Raytheon Company Dba Raytheon
5120-00-568-0546HW2600A INTERCHANGEABLE
Adapter,fastener Installation to
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5120-00-605-5383HW2601 INTERCHANGEABLE
Adapter,fastener Installation to
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5120-00-605-5384HW2602 INTERCHANGEABLE
Adapter,fastener Installation to
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5120-00-613-7444 INTERCHANGEABLE
Adapter,fastener Installation to
5120-00-696-3343HW2600P INTERCHANGEABLE
Adapter,fastener Installation to
Zephyr Manufacturing Co., Inc. Dba Zephyr Manufacturing Co Inc
5961-00-816-9449 INTERCHANGEABLE
Semiconductor Device,diode
5360-01-020-5768250D INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
5835-01-055-1911 INTERCHANGEABLE
Eraser,magnetic
3450-01-428-4221300C INTERCHANGEABLE
Threading Machine,pipe and Bolt
Ridge Tool Company
Cross-Reference Index
Part NumberManufacturer
300C PRIMARY Setra Systems, Inc. Dba Setra, Inc. (USA)
5545158 Naval Sea Systems Command (USA)
Related Parts
5985-00-433-3945INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
927058-1
5120-00-568-0546INTERCHANGEABLE
ADAPTER,FASTENER INSTALLATION TO
HW2600A
5120-00-605-5383INTERCHANGEABLE
ADAPTER,FASTENER INSTALLATION TO
HW2601
5120-00-605-5384INTERCHANGEABLE
ADAPTER,FASTENER INSTALLATION TO
HW2602
5120-00-613-7444INTERCHANGEABLE
ADAPTER,FASTENER INSTALLATION TO
5120-00-696-3343INTERCHANGEABLE
ADAPTER,FASTENER INSTALLATION TO
HW2600P
5961-00-816-9449INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5360-01-020-5768INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
250D
5835-01-055-1911INTERCHANGEABLE
ERASER,MAGNETIC
3450-01-428-4221INTERCHANGEABLE
THREADING MACHINE,PIPE AND BOLT
300C

Frequently Asked Questions

What is NSN 6685-01-152-1781?

NSN 6685-01-152-1781 is a Indicator,pressure, manufactured by Setra Systems, Inc. Dba Setra, Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-152-1781?

NSN 6685-01-152-1781 has 2 cross-referenced part numbers: 300C (Setra Systems, Inc. Dba Setra, Inc.), 5545158 (Naval Sea Systems Command).

What NSN replaces 6685-01-152-1781?

There are 10 known substitutes for 6685-01-152-1781: 5985-00-433-3945, 5120-00-568-0546, 5120-00-605-5383 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 300C?

Key specifications for 300C: Current Type: AC; Frequency Rating: 60.0 HERTZ NOMINAL; Phase: SINGLE; Electrical Connection Quantity: 2. 7 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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