PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18140902Gage,pressure,dial Indicating

Meggitt Safety Systems Inc · NSN 6685-00-783-6117 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-783-6117 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-783-6117. Primary manufacturer part number: 18140902.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: IRON ALLOY ACTUATING ELEMENT
  • Material: ALUMINUM ALLOY CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Connection Size: 0.438 IN. TUBE IN
  • Adjustability: NONADJUSTABLE
  • Connector Type Vent: NOT PROVIDED
  • Mounting Connection Location: BACK, CENTER
Applications
  • Applications requiring Iron Alloy Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-783-6117, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Meggitt Safety Systems Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-783-6117
Primary Part Number18140902
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMeggitt Safety Systems Inc
StatusACTIVE
MaterialIRON ALLOY ACTUATING ELEMENT
MaterialALUMINUM ALLOY CASE
MaterialGLASS PROTECTIVE CRYSTAL
Connection Size0.438 IN. TUBE IN
AdjustabilityNONADJUSTABLE
Connector Type VentNOT PROVIDED
Mounting Connection LocationBACK, CENTER
Scale Range+0.000 TO 4000.000 POUNDS PRESSURE PER SQUARE INCH LBS
Mounting MethodTHREADED MALE CONNECTION
Scale TypeSINGLE
Pointer TypeINDICATING
Scale Inscription/background ColorWHITE MARKINGS ON BLACK BACKGROUND
Actuation TypeBOURDON TUBE
Scale NamePRESSURE
Scale Accuracy2 PCT ENTIRE RANGE
Graduation Unit1000.000 POUNDS PER SQUARE INCH LBS
Connection LocationBACK, CENTER
Dial Size1 IN. DIA IN
Unable to DecodeUNABLE TO DECODE
Connection Quantity1
Pointer ColorWHITE
Scale Smallest Increment500.000 POUNDS PER SQUARE INCH (PSI) LBS
Connection TypeEXTERNAL
Overall Diameter1.218 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-263-5266505-0682 INTERCHANGEABLE
Tee,pipe
Cummins Power Generation Inc.
5120-00-331-6156270-60008 INTERCHANGEABLE
Presetting Tool,tube Fitting
Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company
5310-00-442-890756058 INTERCHANGEABLE
Washer,flat
Hamilton Sundstrand Corporation Dba Collins Aerospace
5340-01-112-77933012971 INTERCHANGEABLE
Clamp,loop
Cummins Inc.
5342-01-176-812656058 INTERCHANGEABLE
Mount,resilient,weapon System
Alliance Laundry Systems Llc
5940-01-387-1091 INTERCHANGEABLE
Terminal,stud
5120-01-490-5464 INTERCHANGEABLE
Presetting Tool,tub
Cross-Reference Index
Part NumberManufacturer
18140902 PRIMARY Meggitt Safety Systems Inc (USA)
12-46 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
56058 3d Instruments Llc. Dba Sierra Precision (USA)
18140902 Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA)
CH00018-3 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
6901-834-3 Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County (USA)
6685PL0577354 Jednolity Indeks Materialowy - Uniform Material Index (POL)
56058-1 3d Instruments Llc. Dba Sierra Precision (USA)
1218-050-03 PRIMARY Qed Inc Dba Qed Inc (USA)
1218-50-3 Qed Inc Dba Qed Inc (USA)
Related Parts
4730-00-263-5266INTERCHANGEABLE
TEE,PIPE
505-0682
5120-00-331-6156INTERCHANGEABLE
PRESETTING TOOL,TUBE FITTING
270-60008
5310-00-442-8907INTERCHANGEABLE
WASHER,FLAT
56058
5340-01-112-7793INTERCHANGEABLE
CLAMP,LOOP
3012971
5342-01-176-8126INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
56058
5940-01-387-1091INTERCHANGEABLE
TERMINAL,STUD
5120-01-490-5464INTERCHANGEABLE
PRESETTING TOOL,TUB

Frequently Asked Questions

What is NSN 6685-00-783-6117?

NSN 6685-00-783-6117 is a Gage,pressure,dial Indicating, manufactured by Meggitt Safety Systems Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-783-6117?

NSN 6685-00-783-6117 has 10 cross-referenced part numbers: 18140902 (Meggitt Safety Systems Inc), 12-46 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 56058 (3d Instruments Llc. Dba Sierra Precision), 18140902 (Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County), CH00018-3 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company) and 5 more.

What NSN replaces 6685-00-783-6117?

There are 7 known substitutes for 6685-00-783-6117: 4730-00-263-5266, 5120-00-331-6156, 5310-00-442-8907 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18140902?

Key specifications for 18140902: Material: IRON ALLOY ACTUATING ELEMENT; Material: ALUMINUM ALLOY CASE; Material: GLASS PROTECTIVE CRYSTAL; Connection Size: 0.438 IN. TUBE IN. 25 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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