PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SG4MN15HPWCONAGGage,pressure,dial Indicating

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6685-01-491-0471 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-491-0471 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-491-0471. Primary manufacturer part number: SG4MN15HPWCONAG.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Scale Smallest Increment: 20.0 POUNDS PER SQUARE INCH (PSI) LBS
  • Pointer Type: INDICATING
  • Scale Name: POUNDS PRESSURE
  • Mounting Method: FLUSH
  • Pointer Color: ANY ACCEPTABLE
  • Connection Type: EXTERNAL
  • Scale Type: DIAL
Applications
  • Applications requiring Steel Corrosion Resisting Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-01-491-0471, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-491-0471
Primary Part NumberSG4MN15HPWCONAG
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Scale Smallest Increment20.0 POUNDS PER SQUARE INCH (PSI) LBS
Pointer TypeINDICATING
Scale NamePOUNDS PRESSURE
Mounting MethodFLUSH
Pointer ColorANY ACCEPTABLE
Connection TypeEXTERNAL
Scale TypeDIAL
Actuation TypeBOURDON TUBE
AdjustabilityNONADJUSTABLE
Dial Size4.5IN IN
Connection Quantity1
Scale Range+0.0 TO 1500.0 POUNDS PRESSURE PER SQUARE INCH LBS
MaterialSTEEL CORROSION RESISTING ACTUATING ELEMENT
Connection SizeFLARELESS UNION 7/16-20UNF-2A A
Connector Type VentNOT PROVIDED
Connection LocationBOTTOM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-01-087-9079EA24-3CYF-RWB0 INTERCHANGEABLE
Gage,compound Pressure-Vacuum,di
Ashcroft Inc Dba Heise
6685-01-418-4754EA24-3CUF-LWBO INTERCHANGEABLE
Gage,pressure,dial Indicating
Mmc Metrology Lab, Inc. Dba Mmc Metrology Lab Inc
6685-01-475-0097 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-490-3189 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-491-0468 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-493-1692 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-501-1312 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-547-9310 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-547-9313 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-01-588-8895 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
SG4MN15HPWCONAG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-G-18997 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
G27-351 Ashcroft Inc Dba Heise (USA)
EA24-3PRF-LWBO Ashcroft Inc Dba Heise (USA)
Related Parts
6685-01-087-9079INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
EA24-3CYF-RWB0
6685-01-418-4754INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
EA24-3CUF-LWBO
6685-01-475-0097INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-490-3189INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-491-0468INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-493-1692INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-501-1312INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-547-9310INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-547-9313INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-588-8895INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-588-8901INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-01-626-2614INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING

Frequently Asked Questions

What is NSN 6685-01-491-0471?

NSN 6685-01-491-0471 is a Gage,pressure,dial Indicating, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-491-0471?

NSN 6685-01-491-0471 has 4 cross-referenced part numbers: SG4MN15HPWCONAG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-G-18997 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), G27-351 (Ashcroft Inc Dba Heise), EA24-3PRF-LWBO (Ashcroft Inc Dba Heise).

What NSN replaces 6685-01-491-0471?

There are 12 known substitutes for 6685-01-491-0471: 6685-01-087-9079, 6685-01-418-4754, 6685-01-475-0097 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SG4MN15HPWCONAG?

Key specifications for SG4MN15HPWCONAG: Scale Smallest Increment: 20.0 POUNDS PER SQUARE INCH (PSI) LBS; Pointer Type: INDICATING; Scale Name: POUNDS PRESSURE; Mounting Method: FLUSH. 17 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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