PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

475-2Manometer,meter

Dwyer Instruments Inc · NSN 6685-01-478-8849 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-478-8849 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-478-8849. Primary manufacturer part number: 475-2.
Features
  • Manometer,meter — FSC 6685
  • Overall Diameter: 23.0 MILLIMETERS NOMINAL MM
  • General Characteristics Item Description: HANDHELD DIGITAL MANOMETER; MEASURES POSITIVE, NEGATIVE AND DIFFERENTIAL PRESSURE; DUAL CALIBRATION WITH ENGLISH AND METRIC UNITS; ENGLISH RANGE 0-40.0 IN W.C.; METRIC RANGE 0-9.95 KPA; MAXIMUM PRESSURE 11 PSIG/75KPA; 0.5 PER CENT ACCURACY AT FULL SCALE; OPERATING TEMPERATURE RANGE 32-122 DEG. F; POWER SOURCE 9 VOLT ALKALINE BATTER; 0.5 IN. LCD DISPLAY; ALUMINUM CASE IN
  • 1 verified cross-reference
  • Primary manufacturer: Dwyer Instruments Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Manometer,meter, cataloged under National Stock Number 6685-01-478-8849, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Dwyer Instruments Inc. Government technical data includes 2 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-478-8849
Primary Part Number475-2
Item NameManometer,meter
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDwyer Instruments Inc
StatusACTIVE
Overall Diameter23.0 MILLIMETERS NOMINAL MM
General Characteristics Item DescriptionHANDHELD DIGITAL MANOMETER; MEASURES POSITIVE, NEGATIVE AND DIFFERENTIAL PRESSURE; DUAL CALIBRATION WITH ENGLISH AND METRIC UNITS; ENGLISH RANGE 0-40.0 IN W.C.; METRIC RANGE 0-9.95 KPA; MAXIMUM PRESSURE 11 PSIG/75KPA; 0.5 PER CENT ACCURACY AT FULL SCALE; OPERATING TEMPERATURE RANGE 32-122 DEG. F; POWER SOURCE 9 VOLT ALKALINE BATTER; 0.5 IN. LCD DISPLAY; ALUMINUM CASE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-082-4664 INTERCHANGEABLE
Terminal Board
8040-00-270-81506244P INTERCHANGEABLE
Adhesive
Du Pont E I De Nemours and Co Inc Security Director/legal Dept
3120-00-516-7516153KB11 INTERCHANGEABLE
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Mack Trucks Inc Parts Opn
1680-00-627-50694752 INTERCHANGEABLE
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2530-00-741-02907410290 INTERCHANGEABLE
Magnet Asy
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5325-00-753-3736156413R1 INTERCHANGEABLE
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Navistar Intl Corp Truck Br Ohio Plant
6240-01-203-44944752 INTERCHANGEABLE
Lamp,incandescent
Ushio America, Inc Dba Ushio America Inc
5930-01-314-61784752 INTERCHANGEABLE
Switch,hook
Hose-Mccann Telephone Co, Inc
5340-01-431-33864752 INTERCHANGEABLE
Boot,dust and Moisture Seal
Ell-Tron Mfg. Co., Inc.
5310-01-478-92214752 INTERCHANGEABLE
Washer,lock
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Cross-Reference Index
Part NumberManufacturer
475-2 Dwyer Instruments Inc (USA)
Related Parts
5940-00-082-4664INTERCHANGEABLE
TERMINAL BOARD
8040-00-270-8150INTERCHANGEABLE
ADHESIVE
6244P
3120-00-516-7516INTERCHANGEABLE
BEARING,SLEEVE
153KB11
1680-00-627-5069INTERCHANGEABLE
BLOCK,SUPPORT,MECHA
4752
2530-00-741-0290INTERCHANGEABLE
MAGNET ASY
7410290
5325-00-753-3736INTERCHANGEABLE
RING,RETAINING
156413R1
6240-01-203-4494INTERCHANGEABLE
LAMP,INCANDESCENT
4752
5930-01-314-6178INTERCHANGEABLE
SWITCH,HOOK
4752
5340-01-431-3386INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
4752
5310-01-478-9221INTERCHANGEABLE
WASHER,LOCK
4752
6520-01-556-2080INTERCHANGEABLE
CABLE ASSEMBLY,HANDPIECE,DENTAL
81277
6240-01-659-5647INTERCHANGEABLE
LAMP,INCANDESCENT
4752

Frequently Asked Questions

What is NSN 6685-01-478-8849?

NSN 6685-01-478-8849 is a Manometer,meter, manufactured by Dwyer Instruments Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-478-8849?

NSN 6685-01-478-8849 has 1 cross-referenced part number: 475-2 (Dwyer Instruments Inc).

What NSN replaces 6685-01-478-8849?

There are 12 known substitutes for 6685-01-478-8849: 5940-00-082-4664, 8040-00-270-8150, 3120-00-516-7516 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 475-2?

Key specifications for 475-2: Overall Diameter: 23.0 MILLIMETERS NOMINAL MM; General Characteristics Item Description: HANDHELD DIGITAL MANOMETER; MEASURES POSITIVE, NEGATIVE AND DIFFERENTIAL PRESSURE; DUAL CALIBRATION WITH ENGLISH AND METRIC UNITS; ENGLISH RANGE 0-40.0 IN W.C.; METRIC RANGE 0-9.95 KPA; MAXIMUM PRESSURE 11 PSIG/75KPA; 0.5 PER CENT ACCURACY AT FULL SCALE; OPERATING TEMPERATURE RANGE 32-122 DEG. F; POWER SOURCE 9 VOLT ALKALINE BATTER; 0.5 IN. LCD DISPLAY; ALUMINUM CASE IN; Overall Height: 166.0 MILLIMETERS NOMINAL MM; Overall Width: 71.0 MILLIMETERS NOMINAL MM. 4 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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