PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51-65Gage,pressure,dial Indicating

Liftec Inc Div Liftec, Inc. · NSN 6685-00-807-5952 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-807-5952 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-807-5952. Primary manufacturer part number: 51-65.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Mounting Hole Diameter: 0.187 INCHES NOMINAL IN
  • Overall Diameter: 4.312 INCHES NOMINAL IN
  • Material: IRON CAST CASE
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE DATA,DIAL DATA,CASE DATA,CONNECTION DATA,MTG DATA
  • Material: GLASS PROTECTIVE CRYSTAL
  • Material: STEEL ACTUATING ELEMENT
  • Surface Treatment: ENAMEL CASE
Applications
  • Applications requiring Iron Cast Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-807-5952, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Liftec Inc Div Liftec, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN6685-00-807-5952
Primary Part Number51-65
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerLiftec Inc Div Liftec, Inc.
StatusACTIVE
Mounting Hole Diameter0.187 INCHES NOMINAL IN
Overall Diameter4.312 INCHES NOMINAL IN
MaterialIRON CAST CASE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SCALE DATA,DIAL DATA,CASE DATA,CONNECTION DATA,MTG DATA
MaterialGLASS PROTECTIVE CRYSTAL
MaterialSTEEL ACTUATING ELEMENT
Surface TreatmentENAMEL CASE
FSC Application DataGAGES,PRESSURE,DIAL INDICATING,EXCEPT ENGINE
Bolt Circle Diameter4.000 INCHES NOMINAL IN
Mounting Hole Quantity3
Connection Quantity1
Connector Type VentNOT PROVIDED
Scale Smallest Increment60.0 POUNDS LBS
Graduation Unit300.0 POUNDS LBS
Unable to DecodeUNABLE TO DECODE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
AdjustabilityNONADJUSTABLE
Scale Range+0.000 TO 3000.000 POUNDS PRESSURE PER SQUARE INCH LBS
Bezel TypeTHREAD
Connection LocationBACK
Connection TypeEXTERNAL
Scale NamePRESSURE
Mounting MethodFLUSH PANEL
Scale TypeSINGLE
Dial Size3.500 IN. DIA IN
Connection Size1/4 IN. NPT IN
Pointer TypeINDICATING
Actuation TypeSINGLE BOURDON TUBE
Pointer ColorBLACK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5905-00-048-5165SMC640155 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-192-6188 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
6685-00-257-1568 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-257-1571 INTERCHANGEABLE
Gage,pressure,dial Indicating
5360-00-316-64365165 INTERCHANGEABLE
Spring
Signode Corp
6640-00-413-00301982-12 INTERCHANGEABLE
Cushion,laboratory Centrifuge Ve
Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia
3120-00-493-40365165 INTERCHANGEABLE
Bearing,sleeve
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
6685-00-526-8483 INTERCHANGEABLE
Gage,pressure,dial Indicating
5940-00-636-60251382B INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
1015-00-671-410010868613 INTERCHANGEABLE
Boot,elevating Gear
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
51-65 Liftec Inc Div Liftec, Inc. (USA)
51F Liftec Inc Div Liftec, Inc. (USA)
Related Parts
5905-00-048-5165INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
SMC640155
5330-00-192-6188INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
6685-00-257-1568INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-257-1571INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5360-00-316-6436INTERCHANGEABLE
SPRING
5165
6640-00-413-0030INTERCHANGEABLE
CUSHION,LABORATORY CENTRIFUGE VE
1982-12
3120-00-493-4036INTERCHANGEABLE
BEARING,SLEEVE
5165
6685-00-526-8483INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
5940-00-636-6025INTERCHANGEABLE
TERMINAL BOARD
1382B
1015-00-671-4100INTERCHANGEABLE
BOOT,ELEVATING GEAR
10868613
6625-00-691-5942INTERCHANGEABLE
AMMETER
PX14163843-10
4820-00-843-0021INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 6685-00-807-5952?

NSN 6685-00-807-5952 is a Gage,pressure,dial Indicating, manufactured by Liftec Inc Div Liftec, Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-807-5952?

NSN 6685-00-807-5952 has 2 cross-referenced part numbers: 51-65 (Liftec Inc Div Liftec, Inc.), 51F (Liftec Inc Div Liftec, Inc.).

What NSN replaces 6685-00-807-5952?

There are 12 known substitutes for 6685-00-807-5952: 5905-00-048-5165, 5330-00-192-6188, 6685-00-257-1568 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51-65?

Key specifications for 51-65: Mounting Hole Diameter: 0.187 INCHES NOMINAL IN; Overall Diameter: 4.312 INCHES NOMINAL IN; Material: IRON CAST CASE; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SCALE DATA,DIAL DATA,CASE DATA,CONNECTION DATA,MTG DATA. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com