RR-C-271F
Grade B - High strength
Class 1 - Round pin and cotter
Class 2 - Screw pin
Class 3 - Bolt, nut and cotter
Type V - Hooks
Class 1 - Eye slip hooks
Class 2 - Eye grab hooks
Class 3 - Eye hoist or sling hooks
Class 6 - Eye barrel hooks
Type VI - Rings
Type VII - Swivels
Class 1 - Chain swivels
Class 2 - Eye and eye swivels
Class 3 - Jaw and eye swivels Type IX - Bead chain fasteners Type X - Bead chain couplings
Type XI - Bead chain insulating couplings
Type XIII - Pear-shaped links
Type XIV - Mechanical coupling links
Type XV - End links
Type XVI - Chain master links
2. APPLICABLE DOCUMENTS
2.1 Government publications. The issues of the following documents, in effect on the date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein.
Federal Standards
FED-STD-H28 - Screw-Thread Standards for Federal Services
FED-STD-123 - Marking for Shipment (Civil Agencies)
3
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