£106.08

Master Lock S3923 Blind Flange Lockout Device, Small for Nut Diameter from 33 to 48 mm

Red, S3923

Price data last checked 103 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

About as cheap as it gets. The only time it was cheaper was 1 year ago.

£106 today · all-time low £101 (Feb 2025) · usually the usual

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 628 days • 628 data points (No recent data available)

Historical
Generating forecast...
£183.56 £93.15 £112.88 £132.60 £152.33 £172.05 £191.78 05 June 2024 08 November 2024 14 April 2025 18 September 2025 22 February 2026

Price Distribution

Price distribution over 628 days • 8 price levels

Days at Price
Current Price
22 days 70 days 343 days · current 18 days 27 days 8 days 28 days 112 days 0 86 172 257 343 £101 £103 £106 £146 £163 £171 £173 £184 Days at Price

Price Analysis

Most common price: £106 (343 days, 54.6%)

Price range: £101 - £184

Price levels: 8 different prices over 628 days

Description

Blind Flange Lockout Device, Color Red/Black/Silver, Nut Dia. 1. 000 In. to 1. 875 In. , Fits Pipe Size 3-1/2 In. to 12 In. , Flange Size 3-3/4 In. to 10-3/4 In. , Max. Number of Padlocks 4, Padlock Shackle Max. Dia. 5/16 In. , Material Aluminum/Steel, For Use With Pipelines, Standards OSHA 1910. 147

Key Features

LOCKOUT TAGOUT: Protect your employees life during maintenance by isolating energy sources in your plant

APPLICATION: Device fully conceals flange bolts preventing access to the blind until all work has been completed

TECHNICAL CHARACTERISTICS: Recommended for use with nut diameter from 33mm to 48mm, Four lockout holes allow for multiple workers to lockout device at one time

ENVIRONMENT: Durable aluminum and hardened steel construction withstands conditions indoors and out, adapted to ATEX sites

DIMENSIONS: (HxLxD) 33 x 43 x 5.1 cm

LIMITED LIFETIME WARRANTY

Product Specifications

Model
S3923
Colour
Red
Size
53.3 Cm X 45.7 Cm X 45.7 Cm
Domain
Amazon UK
Listed Since
24 May 2019

Barcode

No barcode data available

Similar Products You Might Like

Master Lock S3924 Blind Flange Lockout Device, Large
97% match

Master Lock S3924 Blind Flange Lockout Device, Large

Master Lock

£155.52 22 Feb 2026
Master Lock S3922 Blind Flange Lockout Device, Small for Nut Diameter from 19mm to 28,5mm
97% match

Master Lock S3922 Blind Flange Lockout Device, Small for Nut Diameter from 19mm to 28,5mm

Master Lock

£93.72 28 Feb 2026
LOCTITE SI 5970, Black Silicone Sealant for Gasketing and Flanges, Adhesive with Strong Resistance against Motor Oil and Vibration, 300ml
95% match

LOCTITE SI 5970, Black Silicone Sealant for Gasketing and Flanges, Adhesive with Strong Resistance against Motor Oil and Vibration, 300ml

Loctite

£51.59 31 Jan 2026
WEDO 2pcs Non-Sparking Flange Wedge Set, Spark-free Safety Flange Wedge,Beryllium Copper,Non-Magnetic,Die-Forged, Corrosion Resistant, DIN Standard,Size100*50 * 10mm(4”*2”*2/5”)
95% match

WEDO 2pcs Non-Sparking Flange Wedge Set, Spark-free Safety Flange Wedge,Beryllium Copper,Non-Magnetic,Die-Forged, Corrosion Resistant, DIN Standard,Size100*50 * 10mm(4”*2”*2/5”)

WEDO

£58.13 17 Feb 2026
LOCTITE SI 5910, Silicone for Sealing Flexible Flanges, Oil-Resistant Glue Sealant Based on Silicone, Silicone Adhesive for Housing Covers and Oil Pans, 300ml
95% match

LOCTITE SI 5910, Silicone for Sealing Flexible Flanges, Oil-Resistant Glue Sealant Based on Silicone, Silicone Adhesive for Housing Covers and Oil Pans, 300ml

Loctite

£50.15 31 Jan 2026
Bahco 1949Z-1-1.1/8 - Open Ring Wrench
95% match

Bahco 1949Z-1-1.1/8 - Open Ring Wrench

Bahco

£52.49 15 Feb 2026
Pipe Flange kit in case
95% match

Pipe Flange kit in case

arnocanali

£67.99 21 Feb 2026
Flange Wizard 38240-T Pipe Flange Aligners, 1/2 in-1 7/16 in, Threaded, Black, 1/2"-1-7/16"
95% match

Flange Wizard 38240-T Pipe Flange Aligners, 1/2 in-1 7/16 in, Threaded, Black, 1/2"-1-7/16"

Flange Wizard

£94.37 17 Feb 2026
Facom 70 A.17 – Hexagon Key Wrench with Ratchet 17 mm
95% match

Facom 70 A.17 – Hexagon Key Wrench with Ratchet 17 mm

Facom

£72.31 15 Apr 2026
BGS 70221 | Double Flaring Tool Kit with Pipe Cutter | 10 pcs.
95% match

BGS 70221 | Double Flaring Tool Kit with Pipe Cutter | 10 pcs.

BGS

£45.43 07 Feb 2026
HALDER 4211.C16 Ball Locking Bolt with T-Handle, Simple Acting - According to NASM / MS17985 pin, Black, Nenndurchmesser=5/16 Zoll
94% match

HALDER 4211.C16 Ball Locking Bolt with T-Handle, Simple Acting - According to NASM / MS17985 pin, Black, Nenndurchmesser=5/16 Zoll

Halder

£42.43 11 Dec 2025
KS Tools 6-16mm Flaring Tool Clamping Device
94% match

KS Tools 6-16mm Flaring Tool Clamping Device

KS TOOLS

£56.94 06 Feb 2026
Mt bk Casting Valves - Stainless Steel Double Disc Check Valve 4"
94% match

Mt bk Casting Valves - Stainless Steel Double Disc Check Valve 4"

Mt bk

£84.13 30 Mar 2026
BGS 74302 | Crowfoot Spanner Set | 10 mm (3/8") Drive | with Joint | 6 pcs.
94% match

BGS 74302 | Crowfoot Spanner Set | 10 mm (3/8") Drive | with Joint | 6 pcs.

BGS

£70.47 07 Feb 2026
Stahlwille 40085555 13 Combination Spanner, Open-Box, Chrome Alloy Steel, Chrome Plated, 55 mm Size
94% match

Stahlwille 40085555 13 Combination Spanner, Open-Box, Chrome Alloy Steel, Chrome Plated, 55 mm Size

Stahlwille

£174.47 05 Feb 2026
Bahco 1949M-30-32 - Open Ring Wrench
94% match

Bahco 1949M-30-32 - Open Ring Wrench

Bahco

£57.99 11 Feb 2026
Llave Plana Boca FIJA - 4004 60
94% match

Llave Plana Boca FIJA - 4004 60

Stahlwille

£43.62 07 Feb 2026
Llave Plana Boca FIJA - 4004 75
94% match

Llave Plana Boca FIJA - 4004 75

Stahlwille

£119.65 12 Feb 2026
Stahlwille 43012123 Flexi 29 Double Ended Flexi-Joint Spanner, Bi-Hexagon, 21mm x 23mm Opening, 286.5mm Length, Pack of 5
94% match

Stahlwille 43012123 Flexi 29 Double Ended Flexi-Joint Spanner, Bi-Hexagon, 21mm x 23mm Opening, 286.5mm Length, Pack of 5

Stahlwille

£59.30 07 Feb 2026
HALDER 4211.F36 Ball Locking Bolt with T-Handle, Simple Acting - According to NASM / MS17985 pin, Black, Nenndurchmesser=1/2 Zoll
94% match

HALDER 4211.F36 Ball Locking Bolt with T-Handle, Simple Acting - According to NASM / MS17985 pin, Black, Nenndurchmesser=1/2 Zoll

Halder

£55.22 17 Feb 2026
Stahlwille 43012022 Flexi 29 Double Ended Flexi-Joint Spanner, Bi-Hexagon, 20mm x 22mm Opening, 287.5mm Length, Pack of 5
94% match

Stahlwille 43012022 Flexi 29 Double Ended Flexi-Joint Spanner, Bi-Hexagon, 20mm x 22mm Opening, 287.5mm Length, Pack of 5

Stahlwille

£53.93 06 Feb 2026
BGS 453 | Circlip Pliers Set | Replaceable Tips | 10 pcs.
94% match

BGS 453 | Circlip Pliers Set | Replaceable Tips | 10 pcs.

BGS

£48.33 08 Feb 2026