PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1377RGage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-531-3410 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-531-3410 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-531-3410. Primary manufacturer part number: 1377R.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: STEEL ACTUATING ELEMENT
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY ACTUATING ELEMENT MATERIAL,SCALE DATA,CONNECTION SIZE
  • Connector Type Vent: NOT PROVIDED
  • Stud Location: BACK
  • Scale Smallest Increment: 2.000 POUNDS LBS
  • Connection Location: BACK
  • Connection Size: 1/4 IN. NPT IN
Applications
  • Applications requiring Steel Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-531-3410, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 28 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-531-3410
Primary Part Number1377R
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
MaterialSTEEL ACTUATING ELEMENT
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY ACTUATING ELEMENT MATERIAL,SCALE DATA,CONNECTION SIZE
Connector Type VentNOT PROVIDED
Stud LocationBACK
Scale Smallest Increment2.000 POUNDS LBS
Connection LocationBACK
Connection Size1/4 IN. NPT IN
Scale Range+0.000 TO 600.000 POUNDS PRESSURE PER SQUARE INCH LBS
Bezel TypeSLIPS-ON
Stud Quantity3
Mounting MethodFLUSH PANEL AND STUD(S)
Connection Quantity1
Scale Accuracy1/2 PCT ENTRIRE RANGE
Graduation Unit50.000 POUNDS LBS
Scale NamePRESSURE
Dial Size6 IN. DIA IN
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Pointer ColorBLACK
AdjustabilityADJUSTABLE
Pointer TypeINDICATING
Connection TypeEXTERNAL
Unable to DecodeUNABLE TO DECODE
MaterialALUMINUM CASE
Overall Diameter7.563 INCHES NOMINAL IN
Bolt Circle Diameter7.000 INCHES NOMINAL IN
MaterialGLASS PROTECTIVE CRYSTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6685-00-051-815460-1082AS02BXEY-200 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-530-408460-1377RS02BXT1SA0S1000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-752-8104 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-956-639660-1082SS-02B-XEY-0/15PSI INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
1377R Ashcroft Inc Dba Heise (USA)
1C1801-2 General Electric Company (USA)
Related Parts
6685-00-051-8154INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
60-1082AS02BXEY-200
6685-00-530-4084INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
60-1377RS02BXT1SA0S1000
6685-00-752-8104INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-956-6396INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
60-1082SS-02B-XEY-0/15PSI

Frequently Asked Questions

What is NSN 6685-00-531-3410?

NSN 6685-00-531-3410 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-531-3410?

NSN 6685-00-531-3410 has 2 cross-referenced part numbers: 1377R (Ashcroft Inc Dba Heise), 1C1801-2 (General Electric Company).

What NSN replaces 6685-00-531-3410?

There are 4 known substitutes for 6685-00-531-3410: 6685-00-051-8154, 6685-00-530-4084, 6685-00-752-8104 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1377R?

Key specifications for 1377R: Material: STEEL ACTUATING ELEMENT; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY ACTUATING ELEMENT MATERIAL,SCALE DATA,CONNECTION SIZE; Connector Type Vent: NOT PROVIDED; Stud Location: BACK. 29 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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