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  • BS 2090:1954

    Current The latest, up-to-date edition.

    Specification for hook spanners, peg spanners, coupling wrenches and the related slots, holes and horns

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  26-02-1954

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Co-operating organizations
    Foreword
    Specification
    1 Scope
    Part 1. Hook spanners and slots
    Section one: Spanners
    2 Material
    3 Finish
    4 Angle of application
    5 Range of sizes and dimensions
    6 Clearance
    7 Marking
    Section two: Slots
    8 Definitions
    9 Number of slots
    10 Limits of tolerance on radial position of slots
    11 Limits of tolerance on dimensions
    12 Dimensions of slots
    Part 2. Peg spanners and peg holes
    13 Type
    14 Material
    15 Finish
    16 Range of sizes
    17 Dimensions
    18 Limits of tolerance
    19 Marking
    Part 3. Coupling wrenches
    20 Type
    21 Material
    22 Finish
    23 Dimensions
    Tables
    1 Dimensions of hook spanners
    2 Clearances
    3 Dimensions of spanner slots in circular nuts
    4 Dimensions of peg spanners and peg holes
    5 Wrenches for couplings having rectangular horns
    6 Wrenches for couplings having round horns

    Abstract - (Show below) - (Hide below)

    Dimensions, materials of hook spanners (C-spanners) and peg spanners; dimensions of slots and holes in circular and similar nuts in which spanners engage. Dimensions, materials of coupling wrenches for hoses up to 100 lb/sq in (not including fire hose couplings). Main nominal dimensions of circular and rectangular horns included.

    Scope - (Show below) - (Hide below)

    Part 1. Hook spanners. Section 1 relates to the dimensional and clearance details of hook spanners. Clauses on material and hardness are included.

    Section 2 relates to the slots on circular nuts with which the spanners are to operate.

    Part 2. Peg spanners. Relates to the dimensions and materials for peg spanners and to the details of the peg holes in circular and other nuts with which this type of spanner is used.

    Part 3. Coupling wrenches. Relates to the dimensions of coupling wrenches, together with the horns on which they function.

    General Product Information - (Show below) - (Hide below)

    Committee MTE/15
    Development Note Reviewed and confirmed by BSI, January 2011. (12/2010)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    SAE ARP688B:2012(S2018) REUSABLE LOCK FOR SPANNER NUTS
    BS 2464:1954 Specification for hose couplings for petrol, oil and lubricants (¾ in. to 4 in. nominal sizes)
    BS 4185-1:1967 Machine tool components Locknuts (\'C\' type, socket set screw locking)
    BS 336:1989 Specification for fire hose couplings and ancillary equipment
    BS 336:2010 Specification for fire hose couplings and ancillary equipment

    Standards Referencing This Book - (Show below) - (Hide below)

    BS 15:1961 Mild steel for general structural purposes.
    BS 2045:1965 Preferred numbers
    BS 970:1955 Wrought steels (bars billets and forgings
    BS 1638(1950) : LATEST REPORT ON THE SELECTION OF RANGES OF TYPES AND SIZES (PREFERRED NUMBERS)
    BS 1782:1951 Specification for couplings for suction and delivery hose (1½ in. to 8 in. nominal sizes) other than fire hose couplings
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