PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FB-139Gage,pressure,dial Indicating

The Hilliard Corp · NSN 6620-00-722-3875 · FSC 6620 · No Item Name Available
Verified by PartsTable
NSN 6620-00-722-3875 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-722-3875. Primary manufacturer part number: FB-139.
Features
  • Gage,pressure,dial Indicating — FSC 6620
  • Material: STEEL CASE
  • Material: BRONZE ACTUATING ELEMENT
  • Surface Treatment: PAINT EPOXY CASE
  • Overall Diameter: 2.125 INCHES NOMINAL IN
  • Mounting Method: RIGID STEM
  • Scale Name: PRESSURE
  • Adjustability: NONADJUSTABLE
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6620-00-722-3875, is classified within Federal Supply Class 6620 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is The Hilliard Corp. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6620-00-722-3875
Primary Part NumberFB-139
Item NameGage,pressure,dial Indicating
FSC / FSG6620 / 66 — No Item Name Available
ManufacturerThe Hilliard Corp
StatusACTIVE
MaterialSTEEL CASE
MaterialBRONZE ACTUATING ELEMENT
Surface TreatmentPAINT EPOXY CASE
Overall Diameter2.125 INCHES NOMINAL IN
Mounting MethodRIGID STEM
Scale NamePRESSURE
AdjustabilityNONADJUSTABLE
Connection LocationBACK
Scale Smallest Increment1.000 POUNDS LBS
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Pointer ColorBLACK
Scale Accuracy2 PCT MIDDLE THIRD OF RANGE
Actuation TypeSINGLE BOURDON TUBE
Bezel TypeSNAP-ON
Dial Size2 IN. DIA IN
Connection Size1/4 IPS
Pointer TypeINDICATING
Connection Quantity1
Scale TypeSINGLE
Scale Range+0.000 TO 100.000 POUNDS PRESSURE PER SQUARE INCH LBS
Connector Type VentNOT PROVIDED
Graduation Unit10.000 POUNDS LBS
Connection TypeEXTERNAL
MaterialPLASTIC PROTECTIVE CRYSTAL
ColorBLACK CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-01-117-3124 INTERCHANGEABLE
Nut,square Head
Cross-Reference Index
Part NumberManufacturer
FB-139 PRIMARY The Hilliard Corp (USA)
Related Parts
5310-01-117-3124INTERCHANGEABLE
NUT,SQUARE HEAD

Frequently Asked Questions

What is NSN 6620-00-722-3875?

NSN 6620-00-722-3875 is a Gage,pressure,dial Indicating, manufactured by The Hilliard Corp, classified under FSC 6620 (No Item Name Available). Status: active.

What are the part numbers for NSN 6620-00-722-3875?

NSN 6620-00-722-3875 has 1 cross-referenced part number: FB-139 (The Hilliard Corp).

What NSN replaces 6620-00-722-3875?

There is 1 known substitute for 6620-00-722-3875: 5310-01-117-3124. Verify interchangeability with system specifications before substitution.

What are the specifications of FB-139?

Key specifications for FB-139: Material: STEEL CASE; Material: BRONZE ACTUATING ELEMENT; Surface Treatment: PAINT EPOXY CASE; Overall Depth: 1.500 INCHES NOMINAL IN. 26 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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