PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

045555-1685Gage,differential,dial Indicatin

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-417-6222 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-417-6222 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-417-6222. Primary manufacturer part number: 045555-1685.
Features
  • Gage,differential,dial Indicatin — FSC 6685
  • Mounting Hole Quantity: 3
  • Adjustability: ADJUSTABLE
  • Scale Accuracy: PORM 2 PCT FULL RANGE
  • Connection Location: BOTTOM
  • Scale Type: SPLIT
  • Material: PLASTIC PHENOLIC CASE
  • Scale Inscription/background Color: WHITE FIGURES ON BLACK BACKGROUND
Applications
  • Applications requiring Plastic Phenolic Case construction
General Description

The Gage,differential,dial Indicatin, cataloged under National Stock Number 6685-00-417-6222, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN6685-00-417-6222
Primary Part Number045555-1685
Item NameGage,differential,dial Indicatin
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusACTIVE
Mounting Hole Quantity3
AdjustabilityADJUSTABLE
Scale AccuracyPORM 2 PCT FULL RANGE
Connection LocationBOTTOM
Scale TypeSPLIT
MaterialPLASTIC PHENOLIC CASE
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Bezel TypeSNAP-ON
Connection Quantity2
Scale NameDIFFERENTIAL PRESSURE
Connection Size0.250 IN. NPT DIA IN
Dial Size4-1/2 IN. DIA IN
MaterialPLASTIC PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Surface TreatmentPAINT CASE
Pointer ColorSILVER
Scale Smallest Increment0.2 POUNDS LBS
Surface TreatmentPAINT LOCATION NOT OTHERWISE SPECIFIED
Scale Range+0.0 TO 7.5 POUNDS PRESSURE PER SQUARE INCH LBS
Graduation Unit1.0 POUNDS LBS
Pointer TypeINDICATING
MaterialCOPPER ALLOY LOCATION NOT OTHERWISE SPECIFIED
Actuation TypeDOUBLE BOURDON TUBE
Connector Type VentNOT PROVIDED
Unable to DecodeUNABLE TO DECODE
Mounting MethodFLUSH PANEL
Connection TypeEXTERNAL
Bolt Circle Diameter5.380 INCHES NOMINAL IN
Overall Diameter5.813 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-010-38742B0858 INTERCHANGEABLE
Plug,pipe
Caterpillar Inc Div Caterpillar Defense
5815-00-065-485801685 INTERCHANGEABLE
Teletypewriter Subassembly
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
5805-00-177-33971685 INTERCHANGEABLE
Low Level Interface
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
6150-00-305-24851685 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Champion Aerospace Llc
2910-00-562-00131685 INTERCHANGEABLE
Seal Assy,fuel Valv
O & S Acquisition Llc Dba O & S America Llc
6920-00-671-6586 INTERCHANGEABLE
Housing Assembly,le
5340-00-682-1815SMD33966-7 INTERCHANGEABLE
Bumper
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-737-01501685 INTERCHANGEABLE
Transformer,audio Frequency
Comspace Corp Munston Electronics Div
4730-00-877-1075 INTERCHANGEABLE
Elbow,pipe
6685-00-880-2826BC14ADD4LWXX INTERCHANGEABLE
Gage,differential,dial Indicatin
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
045555-1685 PRIMARY Ametek, Inc. Div Aerospace & Defense (USA)
45555 Ametek, Inc. Div Aerospace & Defense (USA)
C6386-1 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
45559 Ametek, Inc. Div Aerospace & Defense (USA)
1685 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
4730-00-010-3874INTERCHANGEABLE
PLUG,PIPE
2B0858
5815-00-065-4858INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
01685
5805-00-177-3397INTERCHANGEABLE
LOW LEVEL INTERFACE
1685
6150-00-305-2485INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1685
2910-00-562-0013INTERCHANGEABLE
SEAL ASSY,FUEL VALV
1685
6920-00-671-6586INTERCHANGEABLE
HOUSING ASSEMBLY,LE
5340-00-682-1815INTERCHANGEABLE
BUMPER
SMD33966-7
5950-00-737-0150INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
1685
4730-00-877-1075INTERCHANGEABLE
ELBOW,PIPE
6685-00-880-2826INTERCHANGEABLE
GAGE,DIFFERENTIAL,DIAL INDICATIN
BC14ADD4LWXX
5935-01-036-7957INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
24243-0060
5935-01-042-5598INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4030754-0703

Frequently Asked Questions

What is NSN 6685-00-417-6222?

NSN 6685-00-417-6222 is a Gage,differential,dial Indicatin, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-417-6222?

NSN 6685-00-417-6222 has 5 cross-referenced part numbers: 045555-1685 (Ametek, Inc. Div Aerospace & Defense), 45555 (Ametek, Inc. Div Aerospace & Defense), C6386-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 45559 (Ametek, Inc. Div Aerospace & Defense), 1685 (Ametek, Inc. Div Aerospace & Defense).

What NSN replaces 6685-00-417-6222?

There are 12 known substitutes for 6685-00-417-6222: 4730-00-010-3874, 5815-00-065-4858, 5805-00-177-3397 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 045555-1685?

Key specifications for 045555-1685: Mounting Hole Quantity: 3; Overall Depth: 2.560 INCHES NOMINAL IN; Adjustability: ADJUSTABLE; Scale Accuracy: PORM 2 PCT FULL RANGE. 30 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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