PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P844UGage,pressure,dial Indicating

Ametek, Inc. Div Aerospace & Defense · NSN 6685-00-727-8736 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-727-8736 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-727-8736. Primary manufacturer part number: P844U.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Material: BRONZE ACTUATING ELEMENT
  • Material: STEEL CASE
  • Material: GLASS PROTECTIVE CRYSTAL
  • Surface Treatment: CHROMIUM CASE
  • Dial Size: 2-1/2 IN. DIA IN
  • Connection Type: EXTERNAL
  • Scale Type: SINGLE
Applications
  • Applications requiring Bronze Actuating Element construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-727-8736, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-727-8736
Primary Part NumberP844U
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerAmetek, Inc. Div Aerospace & Defense
StatusCANCELLED
MaterialBRONZE ACTUATING ELEMENT
MaterialSTEEL CASE
MaterialGLASS PROTECTIVE CRYSTAL
Surface TreatmentCHROMIUM CASE
Dial Size2-1/2 IN. DIA IN
Connection TypeEXTERNAL
Scale TypeSINGLE
Scale Smallest Increment2.0 POUNDS LBS
Actuation TypeSINGLE BOURDON TUBE
Scale Accuracy2 PCT MIDDLE HALF,REMAINDER PORM 3 PCT
Mounting MethodCLAMP
Overall Diameter2.906 INCHES NOMINAL IN
Connection Size0.250 IN.NPT DIA IN
Graduation Unit10.0 POUNDS LBS
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Connection LocationBACK
AdjustabilityNONADJUSTABLE
Scale Range+0.000 TO 60.000 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer TypeINDICATING
Connector Type VentNOT PROVIDED
Pointer ColorBLACK
Scale NamePRESSURE
Connection Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-052-7378164434 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
4820-00-126-3092G101-25 INTERCHANGEABLE
Stem,fluid Valve
M.t. Davidson Company
6685-00-226-0948 INTERCHANGEABLE
Gage,pressure,dial Indicating
6685-00-248-6881164419 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-248-6882164431 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-264-3897P844UK INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
4310-00-267-5170292B INTERCHANGEABLE
Ring,piston
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
6210-00-295-2480801389 INTERCHANGEABLE
Lens,light
Stromberg-Carlson Corp a Plessey Telecommunications Co
3040-00-354-3299 INTERCHANGEABLE
Shaft,rocker
5360-00-385-3767 INTERCHANGEABLE
Spring
Cross-Reference Index
Part NumberManufacturer
P844U Ametek, Inc. Div Aerospace & Defense (USA)
529904-32 Calgon Corp (USA)
3129091REV2PC32 Naval Ship Systems Command (USA)
G10125 Liftec Inc Div Liftec, Inc. (USA)
529904-30 Calgon Corp (USA)
23B Liftec Inc Div Liftec, Inc. (USA)
P644U Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
6685-00-052-7378INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164434
4820-00-126-3092INTERCHANGEABLE
STEM,FLUID VALVE
G101-25
6685-00-226-0948INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
6685-00-248-6881INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164419
6685-00-248-6882INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
164431
6685-00-264-3897INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
P844UK
4310-00-267-5170INTERCHANGEABLE
RING,PISTON
292B
6210-00-295-2480INTERCHANGEABLE
LENS,LIGHT
801389
3040-00-354-3299INTERCHANGEABLE
SHAFT,ROCKER
5360-00-385-3767INTERCHANGEABLE
SPRING
6685-00-437-8347INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
138026
6685-00-515-5385INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
101003

Frequently Asked Questions

What is NSN 6685-00-727-8736?

NSN 6685-00-727-8736 is a Gage,pressure,dial Indicating, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-727-8736?

NSN 6685-00-727-8736 has 7 cross-referenced part numbers: P844U (Ametek, Inc. Div Aerospace & Defense), 529904-32 (Calgon Corp), 3129091REV2PC32 (Naval Ship Systems Command), G10125 (Liftec Inc Div Liftec, Inc.), 529904-30 (Calgon Corp) and 2 more.

What NSN replaces 6685-00-727-8736?

There are 12 known substitutes for 6685-00-727-8736: 6685-00-052-7378, 4820-00-126-3092, 6685-00-226-0948 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P844U?

Key specifications for P844U: Material: BRONZE ACTUATING ELEMENT; Material: STEEL CASE; Material: GLASS PROTECTIVE CRYSTAL; Surface Treatment: CHROMIUM CASE. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-727-8736 still in active supply?

NSN 6685-00-727-8736 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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