PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PG31Gage,pressure,dial Indicating

General Motors Llc Dba General Motors · NSN 6685-00-227-0212 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-227-0212 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-227-0212. Primary manufacturer part number: PG31.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: BRASS ACTUATING ELEMENT
  • Material: STEEL CASE
  • Scale Accuracy: 20 PCT ACCURACY RATING LOWER EIGHTH OF RANGE AND 8.3 PCT UPPER 2/3 OF RANGE
  • Adjustability: NONADJUSTABLE
  • Stud Location: BACK
  • Graduation Unit: 20.0 POUNDS PER SQUARE INCH LBS
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-227-0212, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is General Motors Llc Dba General Motors. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-227-0212
Primary Part NumberPG31
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerGeneral Motors Llc Dba General Motors
StatusCANCELLED
MaterialGLASS PROTECTIVE CRYSTAL
MaterialBRASS ACTUATING ELEMENT
MaterialSTEEL CASE
Scale Accuracy20 PCT ACCURACY RATING LOWER EIGHTH OF RANGE AND 8.3 PCT UPPER 2/3 OF RANGE
AdjustabilityNONADJUSTABLE
Stud LocationBACK
Graduation Unit20.0 POUNDS PER SQUARE INCH LBS
Pointer TypeINDICATING
Scale Smallest Increment10.0 POUNDS PER SQUARE INCH (PSI) LBS
Connection TypeEXTERNAL
Connection LocationBACK
Connection Size0.438 IN. UNF IN
Usage DesignFOR USE W/OIL
Unable to DecodeUNABLE TO DECODE
Dial Size1-3/4 IN. DIA IN
Scale NamePRESSURE
Surface TreatmentCHROMATE ZINC CASE
Connector Type VentNOT PROVIDED
Scale TypeSINGLE
Connection Quantity1
Bezel TypeTHREADED BEZEL
Pointer ColorWHITE
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Scale Range+0.0 TO 80.0 POUNDS PRESSURE PER SQUARE INCH LBS
Mounting MethodSTUD(S)
Actuation TypeSINGLE BOURDON TUBE
Stud Quantity2
Overall Diameter2.281 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5331-00-395-1652AS568-906-S32 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5961-00-584-4527 INTERCHANGEABLE
Semiconductor Device,diode
2590-00-830-89263E31 INTERCHANGEABLE
Cap,filler Opening
Chrysler Corp Service and Parts Opns
Cross-Reference Index
Part NumberManufacturer
PG31 General Motors Llc Dba General Motors (USA)
12361169 General Motors Corp (USA)
1506630 General Motors Llc Dba General Motors (USA)
1507016 Scott Huber Essick a Co of Figgie International Inc (USA)
6463913 Scott Huber Essick a Co of Figgie International Inc (USA)
12361169 General Motors Llc Dba General Motors Llc (USA)
2614223 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
1507016 General Motors Llc Dba General Motors (USA)
1506630 General Motors Corp (USA)
64A98B404-1 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
25025175-TYPE PG61 General Motors Llc Dba General Motors (USA)
6463913 General Motors Corp (USA)
1507016 Rolls-Royce Solutions America Inc (USA)
1507016 General Motors Corp (USA)
1506630 H20 Tank Inc U S Motors Div (USA)
Related Parts
5331-00-395-1652INTERCHANGEABLE
O-RING
AS568-906-S32
5961-00-584-4527INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
2590-00-830-8926INTERCHANGEABLE
CAP,FILLER OPENING
3E31

Frequently Asked Questions

What is NSN 6685-00-227-0212?

NSN 6685-00-227-0212 is a Gage,pressure,dial Indicating, manufactured by General Motors Llc Dba General Motors, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-227-0212?

NSN 6685-00-227-0212 has 15 cross-referenced part numbers: PG31 (General Motors Llc Dba General Motors), 12361169 (General Motors Corp), 1506630 (General Motors Llc Dba General Motors), 1507016 (Scott Huber Essick a Co of Figgie International Inc), 6463913 (Scott Huber Essick a Co of Figgie International Inc) and 10 more.

What NSN replaces 6685-00-227-0212?

There are 3 known substitutes for 6685-00-227-0212: 5331-00-395-1652, 5961-00-584-4527, 2590-00-830-8926. Verify interchangeability with system specifications before substitution.

What are the specifications of PG31?

Key specifications for PG31: Material: GLASS PROTECTIVE CRYSTAL; Overall Depth: 1.203 INCHES NOMINAL IN; Material: BRASS ACTUATING ELEMENT; Material: STEEL CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-227-0212 still in active supply?

NSN 6685-00-227-0212 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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