PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

35-410R-1/4L-0-400Gage,pressure,dial Indicating

Bristol Babcock Inc Helicoid Instruments Div · NSN 6685-00-050-1349 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-050-1349 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-050-1349. Primary manufacturer part number: 35-410R-1/4L-0-400.
Features
  • Gage,pressure,dial Indicating — FSC 6685
  • Surface Treatment: ENAMEL LUSTERLESS CASE
  • Connection Size: 0.250 IN. NPT DIA IN
  • Mounting Connection Location: BOTTOM
  • Color: BLACK CASE
  • Scale Accuracy: 0.5 PCT ENTIRE RANGE
  • Mounting Method: RIGID STEM
  • Connector Type Vent: NOT PROVIDED
Applications
  • Applications requiring Aluminum Alloy Case construction
General Description

The Gage,pressure,dial Indicating, cataloged under National Stock Number 6685-00-050-1349, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Bristol Babcock Inc Helicoid Instruments Div. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN6685-00-050-1349
Primary Part Number35-410R-1/4L-0-400
Item NameGage,pressure,dial Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerBristol Babcock Inc Helicoid Instruments Div
StatusACTIVE
Surface TreatmentENAMEL LUSTERLESS CASE
Connection Size0.250 IN. NPT DIA IN
Mounting Connection LocationBOTTOM
ColorBLACK CASE
Scale Accuracy0.5 PCT ENTIRE RANGE
Mounting MethodRIGID STEM
Connector Type VentNOT PROVIDED
Connection LocationBOTTOM
MaterialALUMINUM ALLOY CASE
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
MaterialPLASTIC PROTECTIVE CRYSTAL
Overall Diameter4.125 INCHES NOMINAL IN
Scale Smallest Increment5.0 POUNDS PER SQUARE INCH (PSI) LBS
Scale Range+0.0 TO 400.0 POUNDS PRESSURE PER SQUARE INCH LBS
Pointer ColorBLACK
Scale TypeSINGLE
Connection Quantity1
Graduation Unit50.0 POUNDS PER SQUARE INCH LBS
Dial Size3-1/2 IN. IN
Scale NamePRESSURE
Pointer TypeINDICATING
Actuation TypeSINGLE BOURDON TUBE
AdjustabilityADJUSTABLE
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6685-00-050-1352E1C1F3A10024UAA INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-058-1505HD35 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-058-1507HD39 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
6685-00-065-1485AA442PM4RW INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-067-781735-1009-AW-02B-160# INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-168-0386155007-1980 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
6685-00-194-168345-1279AS-02L-15 INTERCHANGEABLE
Gage,pressure,dial Indicating
Ashcroft Inc Dba Heise
6685-00-194-1699F4C1B3A000000 INTERCHANGEABLE
Gage,pressure,dial Indicating
Bristol Babcock Inc Helicoid Instruments Div
5120-00-203-6437410-R INTERCHANGEABLE
Clamp,c
Diecraft Inc
6685-00-475-7271 INTERCHANGEABLE
Gage,pressure,dial Indicating
Cross-Reference Index
Part NumberManufacturer
35-410R-1/4L-0-400 PRIMARY Bristol Babcock Inc Helicoid Instruments Div (USA)
410R Bristol Babcock Inc Helicoid Instruments Div (USA)
2312693-1 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6685-00-050-1352INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
E1C1F3A10024UAA
6685-00-058-1505INTERCHANGEABLE
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HD35
6685-00-058-1507INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
HD39
6685-00-065-1485INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
AA442PM4RW
6685-00-067-7817INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
35-1009-AW-02B-160#
6685-00-168-0386INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
155007-1980
6685-00-194-1683INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
45-1279AS-02L-15
6685-00-194-1699INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
F4C1B3A000000
5120-00-203-6437INTERCHANGEABLE
CLAMP,C
410-R
6685-00-475-7271INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
3455-00-483-6933INTERCHANGEABLE
FILE,ROTARY
6685-00-585-4428INTERCHANGEABLE
GAGE,COMPOUND PRESSURE-VACUUM,DI
1903 1/4LBM4.5-200PSI/30VAC

Frequently Asked Questions

What is NSN 6685-00-050-1349?

NSN 6685-00-050-1349 is a Gage,pressure,dial Indicating, manufactured by Bristol Babcock Inc Helicoid Instruments Div, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-050-1349?

NSN 6685-00-050-1349 has 3 cross-referenced part numbers: 35-410R-1/4L-0-400 (Bristol Babcock Inc Helicoid Instruments Div), 410R (Bristol Babcock Inc Helicoid Instruments Div), 2312693-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 6685-00-050-1349?

There are 12 known substitutes for 6685-00-050-1349: 6685-00-050-1352, 6685-00-058-1505, 6685-00-058-1507 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 35-410R-1/4L-0-400?

Key specifications for 35-410R-1/4L-0-400: Surface Treatment: ENAMEL LUSTERLESS CASE; Connection Size: 0.250 IN. NPT DIA IN; Mounting Connection Location: BOTTOM; Color: BLACK CASE. 26 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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