PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-1000H-01B-400Gage,pressure,dial Indicating

Ashcroft Inc Dba Heise · NSN 6685-00-281-2310 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-281-2310 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-281-2310. Primary manufacturer part number: 20-1000H-01B-400.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: STEEL CASE
  • Color: BLACK CASE
  • Connection Size: 0.125 IN. NPT DIA IN
  • Bezel Type: SNAP-ON
  • Graduation Unit: 5.0 POUNDS PER SQUARE INCH LBS
  • Actuation Type: BOURDON TUBE
  • Scale Inscription/background Color: BLACK FIGURES,WHITE BACKGROUND
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-281-2310, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-281-2310
Primary Part Number20-1000H-01B-400
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
MaterialSTEEL CASE
ColorBLACK CASE
Connection Size0.125 IN. NPT DIA IN
Bezel TypeSNAP-ON
Graduation Unit5.0 POUNDS PER SQUARE INCH LBS
Actuation TypeBOURDON TUBE
Scale Inscription/background ColorBLACK FIGURES,WHITE BACKGROUND
Scale Accuracy2 PERCENT MIDDLE HALF,3 PERCENT FIRST AND LAST QUARTER
AdjustabilityNONADJUSTABLE
Connection TypeEXTERNAL
Pointer TypeINDICATING
Scale Range+0.0 TO 400.0 POUNDS PRESSURE PER SQUARE INCH LBS
Connection Quantity1
Connection LocationBACK, CENTER
Pointer ColorBLACK
Scale Name for Which Pointer Is DesignedPRESSURE
Dial Size2 IN. DIA. IN
Scale Smallest Increment1.0 POUNDS PER SQUARE INCH (PSI) LBS
MaterialBRONZE ACTUATING ELEMENT
Surface TreatmentPAINT EPOXY CASE
Overall Diameter2.109 INCHES NOMINAL IN
Scale NamePRESSURE
Mounting Connection LocationBACK, CENTER
Scale TypeDIAL
Mounting MethodCONNECTION
Connector Type VentNOT PROVIDED
MaterialGLASS PROTECTIVE CRYSTAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6685-00-526-01302 1-2 1DFM1-8CBM100RB INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
6685-00-542-140623-2 1-2 1-8-0-300PS1 INTERCHANGEABLE
Gage,pressure,dial Indicating
Liftec Inc Div Liftec, Inc.
6685-00-782-02151-ABB-0440-AGA-001 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bellofram Corporation
Cross-Reference Index
Part NumberManufacturer
20-1000H-01B-400 PRIMARY Ashcroft Inc Dba Heise (USA)
1000U Ashcroft Inc Dba Heise (USA)
Related Parts
6685-00-526-0130INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
2 1-2 1DFM1-8CBM100RB
6685-00-542-1406INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
23-2 1-2 1-8-0-300PS1
6685-00-782-0215INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
1-ABB-0440-AGA-001

Frequently Asked Questions

What is NSN 6685-00-281-2310?

NSN 6685-00-281-2310 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 6685-00-281-2310?

NSN 6685-00-281-2310 has 2 cross-referenced part numbers: 20-1000H-01B-400 (Ashcroft Inc Dba Heise), 1000U (Ashcroft Inc Dba Heise).

What NSN replaces 6685-00-281-2310?

There are 3 known substitutes for 6685-00-281-2310: 6685-00-526-0130, 6685-00-542-1406, 6685-00-782-0215. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-1000H-01B-400?

Key specifications for 20-1000H-01B-400: Material: STEEL CASE; Overall Depth: 1.031 INCHES NOMINAL IN; Color: BLACK CASE; End Item Identification: SUPPORT EQUIPMENT, H-3; F-4; A-10; C-141; H-53; H-1; H-60; C-130. 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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