PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45-1377TAS04B10000Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-854-9141 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-854-9141 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-854-9141. Primary manufacturer part number: 45-1377TAS04B10000.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Color: BLACK CASE
  • Surface Treatment: PAINT EPOXY CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: ALUMINUM AND STEEL CASE
  • FSC Application Data: GAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
  • Surface Treatment: PAINT ACTUATING ELEMENT
  • Material: STEEL COMP 316 ACTUATING ELEMENT
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-854-9141, 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 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-854-9141
Primary Part Number45-1377TAS04B10000
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusCANCELLED
ColorBLACK CASE
Surface TreatmentPAINT EPOXY CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialALUMINUM AND STEEL CASE
FSC Application DataGAGE,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Surface TreatmentPAINT ACTUATING ELEMENT
MaterialSTEEL COMP 316 ACTUATING ELEMENT
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 316 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 30316 ASSN STD SINGLE MATERIAL RESPONSE ACTUATING ELEMENT
Scale Smallest Increment100.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Accuracy1/2 OF 1 PCT ENTIRE RANGE
Actuation TypeSINGLE BOURDON TUBE
Connection Size1/2 IN. NPT IN
Dial Size4.500 IN. DIA IN
Connection Quantity1
Graduation Unit1000.0 POUNDS PER SQUARE INCH LBS
Connection TypeEXTERNAL
Connection LocationLOWER BACK
Mounting MethodFLUSH PANEL AND STUD(S)
Pointer ColorBLACK
Connector Type VentNOT PROVIDED
Scale Range+0.0 TO 10000.0 POUNDS PRESSURE PER SQUARE INCH LBS
AdjustabilityADJUSTABLE
Scale TypeSINGLE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Stud Quantity3
Stud LocationBACK
Bezel TypeHINGE
Pointer TypeINDICATING
Scale NamePRESSURE
Overall Diameter6.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4720-00-200-0368 INTERCHANGEABLE
Hose,nonmetallic
5310-00-209-0786 INTERCHANGEABLE
Washer,lock
3120-00-287-8150150384 INTERCHANGEABLE
Bearing,sleeve
Telemechanics Inc
6810-00-300-6150 INTERCHANGEABLE
Dimethylglyoxime
2930-00-364-7296193-0008 INTERCHANGEABLE
Gage
Cummins Power Generation Inc.
4310-00-371-6610 INTERCHANGEABLE
Ring,piston
3040-00-374-552510506-20061 INTERCHANGEABLE
Shaft,hinged Arm
Johnson C S Co Inc
4730-00-374-612719-24 INTERCHANGEABLE
Strainer Element,sediment
Tankcraft Corp
2990-00-478-83391938 INTERCHANGEABLE
Cylinder,regulating Valve
Imi Cash Valve Inc
6250-00-513-26267-82 INTERCHANGEABLE
Lampholder
Lighting Components and Design Incorporated Dba Lc&d
Cross-Reference Index
Part NumberManufacturer
1377T Ashcroft Inc Dba Heise (USA)
1936T Ametek, Inc. Div Aerospace & Defense (USA)
1938 Ametek, Inc. Div Aerospace & Defense (USA)
2601337-1 Cosmodyne, Llc Dba Cosmodyne Llc (USA)
45-1377TAS04B10000 PRIMARY Ashcroft Inc Dba Heise (USA)
150384 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
4720-00-200-0368INTERCHANGEABLE
HOSE,NONMETALLIC
5310-00-209-0786INTERCHANGEABLE
WASHER,LOCK
3120-00-287-8150INTERCHANGEABLE
BEARING,SLEEVE
150384
6810-00-300-6150INTERCHANGEABLE
DIMETHYLGLYOXIME
2930-00-364-7296INTERCHANGEABLE
GAGE
193-0008
4310-00-371-6610INTERCHANGEABLE
RING,PISTON
3040-00-374-5525INTERCHANGEABLE
SHAFT,HINGED ARM
10506-20061
4730-00-374-6127INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
19-24
2990-00-478-8339INTERCHANGEABLE
CYLINDER,REGULATING VALVE
1938
6250-00-513-2626INTERCHANGEABLE
LAMPHOLDER
7-82
5136-00-825-7096INTERCHANGEABLE
TAP,THREAD CUTTING
6685-00-854-9140INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
451377-SS02B5000

Frequently Asked Questions

What is NSN 6685-00-854-9141?

NSN 6685-00-854-9141 is a Gage,pressure,dial Indicating, manufactured by Ashcroft Inc Dba Heise, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-854-9141?

NSN 6685-00-854-9141 has 6 cross-referenced part numbers: 1377T (Ashcroft Inc Dba Heise), 1936T (Ametek, Inc. Div Aerospace & Defense), 1938 (Ametek, Inc. Div Aerospace & Defense), 2601337-1 (Cosmodyne, Llc Dba Cosmodyne Llc), 45-1377TAS04B10000 (Ashcroft Inc Dba Heise) and 1 more.

What NSN replaces 6685-00-854-9141?

There are 12 known substitutes for 6685-00-854-9141: 4720-00-200-0368, 5310-00-209-0786, 3120-00-287-8150 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45-1377TAS04B10000?

Key specifications for 45-1377TAS04B10000: Color: BLACK CASE; Surface Treatment: PAINT EPOXY CASE; Material: GLASS PROTECTIVE CRYSTAL; Material: ALUMINUM AND STEEL CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-854-9141 still in active supply?

NSN 6685-00-854-9141 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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