The Gage,compound Pressure-Vacuum,di, cataloged under National Stock Number 6685-01-045-0491, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ellis & Watts International, Llc. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 6685-01-045-0491 |
| Primary Part Number | BA1-3B |
| Item Name | Gage,compound Pressure-Vacuum,di |
| FSC / FSG | 6685 / 66 — No Item Name Available |
| Manufacturer | Ellis & Watts International, Llc |
| Status | CANCELLED |
| Overall Diameter | 2.750 INCHES NOMINAL IN |
| Pointer Type | INDICATING |
| Scale Inscription/background Color | BLACK MARKINGS ON WHITE BACKGROUND |
| Scale Range | +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS |
| Connection Quantity | 1 |
| Scale Type | SINGLE |
| Material | STEEL CASE |
| Connection Size | 0.125 IN. NPT DIA IN |
| Connector Type Vent | NOT PROVIDED |
| Scale Name | PRESSURE AND VACUUM |
| Connection Location | BOTTOM |
| Mounting Method | CASE |
| Connection Type | EXTERNAL |
| Graduation Unit | 15.0 INCHES OF MERCURY AND 25.0 POUNDS PER SQUARE INCH LBS |
| Scale Smallest Increment | 5.0 INCHES OF MERCURY (INHG) AND 5.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Actuation Type | BOURDON TUBE |
| Material | COPPER ALLOY ACTUATING ELEMENT |
| Mounting Connection Location | BACK |
| Pointer Color | BLACK |
| Material | PLASTIC ACRYLIC PROTECTIVE CRYSTAL |
| Scale Accuracy | PORM 2 PCT MIDDLE HALF,PORM 3 PCT REMAINDER |
| Dial Size | 2-1/2 IN. DIA IN |
| Bezel Type | SLIPS-ON |
| Adjustability | ADJUSTABLE |
| Surface Treatment | ENAMEL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 6685-01-045-0491 is a Gage,compound Pressure-Vacuum,di, manufactured by Ellis & Watts International, Llc, classified under FSC 6685 (No Item Name Available). Status: cancelled.
NSN 6685-01-045-0491 has 3 cross-referenced part numbers: BA1-3B (Ellis & Watts International, Llc), J4318 (Desco Corp Marsh Bellofram Div), 023-251 (Bellofram Corporation).
There are 4 known substitutes for 6685-01-045-0491: 6685-00-413-6670, 5120-00-473-7494, 4420-00-974-1733 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for BA1-3B: Overall Diameter: 2.750 INCHES NOMINAL IN; Pointer Type: INDICATING; Scale Inscription/background Color: BLACK MARKINGS ON WHITE BACKGROUND; Scale Range: +0.0 TO 30.0 INCHES OF MERCURY AND +0.0 TO 150.0 POUNDS PRESSURE PER SQUARE INCH LBS. 26 total characteristics are documented in the Federal Logistics Information System.
NSN 6685-01-045-0491 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.