PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B21060-6Gage,vacuum,indicating

Keco Industries, Inc. · NSN 6685-00-841-0029 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-841-0029 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-841-0029. Primary manufacturer part number: B21060-6.
Features
  • Gage,vacuum,indicating — FSC 6685
  • Mounting Hole Quantity: 3
  • Bolt Circle Diameter: 3.187 INCHES NOMINAL IN
  • Overall Diameter: 3.562 INCHES NOMINAL IN
  • Connection Type: EXTERNAL
  • Bezel Type: SNAP-ON
  • Connection Size: 1/4 IN. NPT IN
  • Connection Location: BACK
Applications
  • Applications requiring Steel Case construction
General Description

The Gage,vacuum,indicating, cataloged under National Stock Number 6685-00-841-0029, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Keco Industries, Inc.. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 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
NSN6685-00-841-0029
Primary Part NumberB21060-6
Item NameGage,vacuum,indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerKeco Industries, Inc.
StatusACTIVE
Mounting Hole Quantity3
Bolt Circle Diameter3.187 INCHES NOMINAL IN
Overall Diameter3.562 INCHES NOMINAL IN
Connection TypeEXTERNAL
Bezel TypeSNAP-ON
Connection Size1/4 IN. NPT IN
Connection LocationBACK
Pointer TypeINDICATING
AdjustabilityNONADJUSTABLE
Connector Type VentNOT PROVIDED
Scale Accuracy2 PCT MIDDLE HALF OF SCALE 3 PCT REMAINDER OF SCALE
Connection Quantity1
Actuation TypeSINGLE BOURDON TUBE
Scale TypeSINGLE
Mounting MethodFLUSH PANEL
Graduation Unit5.000 INCHES OF MERCURY IN
Dial Size2-1/2 IN. DIA IN
Scale Inscription/background ColorBLACK FIGURES ON WHITE BACKGROUND
Pointer ColorBLACK
Scale Range+0.000 TO 30.000 INCHES OF MERCURY IN
Scale Smallest Increment1.000 INCHES OF MERCURY (INHG) IN
Scale NameVACUUM
MaterialSTEEL CASE
MaterialSTEEL LOCATION NOT OTHERWISE SPECIFIED
Surface TreatmentPAINT LOCATION NOT OTHERWISE SPECIFIED
Surface TreatmentENAMEL CASE
MaterialGLASS PROTECTIVE CRYSTAL
MaterialCOPPER ALLOY 511 ACTUATING ELEMENT
Mounting Hole Diameter0.173 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-618306-4296A INTERCHANGEABLE
Ball,bearing
Hatch & Kirk, Inc.
5310-00-209-0788 INTERCHANGEABLE
Washer,lock
1680-00-314-0092122085-075-00AL INTERCHANGEABLE
Shaft Assembly,flexible
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
6685-00-845-2190138000 INTERCHANGEABLE
Gage,vacuum,indicating
Ametek, Inc. Div Aerospace & Defense
4020-00-926-1036 INTERCHANGEABLE
Tape,lacing and Tying
5910-01-082-8266TC-HV3KV560N2200K INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Radio Materials Corp
2590-01-534-644410792-4 INTERCHANGEABLE
Cylinder,hydraulic Accumulator
Delta Sales Co Airoyal Div
Cross-Reference Index
Part NumberManufacturer
B21060-6 Keco Industries, Inc. (USA)
1ABC03000A6A Desco Corp Marsh Bellofram Div (USA)
21060-6 Keco Industries, Inc. (USA)
V645FF Ametek, Inc. Div Aerospace & Defense (USA)
V845FF Ametek, Inc. Div Aerospace & Defense (USA)
22D Liftec Inc Div Liftec, Inc. (USA)
138473 Ametek, Inc. Div Aerospace & Defense (USA)
107923 Ametek, Inc. Div Aerospace & Defense (USA)
Related Parts
3110-00-100-6183INTERCHANGEABLE
BALL,BEARING
06-4296A
5310-00-209-0788INTERCHANGEABLE
WASHER,LOCK
1680-00-314-0092INTERCHANGEABLE
SHAFT ASSEMBLY,FLEXIBLE
122085-075-00AL
6685-00-845-2190INTERCHANGEABLE
GAGE,VACUUM,INDICATING
138000
4020-00-926-1036INTERCHANGEABLE
TAPE,LACING AND TYING
5910-01-082-8266INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
TC-HV3KV560N2200K
2590-01-534-6444INTERCHANGEABLE
CYLINDER,HYDRAULIC ACCUMULATOR
10792-4

Frequently Asked Questions

What is NSN 6685-00-841-0029?

NSN 6685-00-841-0029 is a Gage,vacuum,indicating, manufactured by Keco Industries, Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-841-0029?

NSN 6685-00-841-0029 has 8 cross-referenced part numbers: B21060-6 (Keco Industries, Inc.), 1ABC03000A6A (Desco Corp Marsh Bellofram Div), 21060-6 (Keco Industries, Inc.), V645FF (Ametek, Inc. Div Aerospace & Defense), V845FF (Ametek, Inc. Div Aerospace & Defense) and 3 more.

What NSN replaces 6685-00-841-0029?

There are 7 known substitutes for 6685-00-841-0029: 3110-00-100-6183, 5310-00-209-0788, 1680-00-314-0092 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B21060-6?

Key specifications for B21060-6: Mounting Hole Quantity: 3; Bolt Circle Diameter: 3.187 INCHES NOMINAL IN; Overall Diameter: 3.562 INCHES NOMINAL IN; Connection Type: EXTERNAL. 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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