RR-C-271 Chains and attachments, carbon and alloy steel (incl. shackles)
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- RR-C-271F (5 July 2011)
- Publisher
- US Federal
- Part family
- Lifting & rigging
- Reviewed
- 27 October 2026 · source checked
Is RR-C-271 still current?
Yes. RR-C-271F (5 July 2011) is the latest edition MechAtlas found (MechAtlas review: 27 October 2026). Check the publisher for amendments before you specify it.
What it covers
US federal spec for chains and attachments, including anchor and chain shackles by type, grade and pin class.
Parts that use RR-C-271
- Shackle (USA (ASME / ASTM), main)
U-shaped forged link closed by a pin, used to connect slings, chains and ropes to loads or lifting points.
Type IVA (anchor) / IVB (chain), Grade A or B, Class 1/2/3
Grades: Grade A (carbon) / Grade B (alloy)
US Federal spec, revision F (2011).
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for RR-C-271 or the US Federal store.
Open in MechAtlasCheck a drawing callout
Other lifting & rigging standards
- IS 6132 Replaced
Shackles (old Indian) - ASME B30.9 / B30.26 / EN 1492 / EN 13889 Changing
Slings, rigging hardware, shackles - ISO 2408 / EN 12385 / IS 2266 Changing
Steel wire rope requirements - ISO 2415 Changing
Forged dee and bow shackles - ISO 4309 Changing
Wire rope care, inspection and discard - API 9A Current
Specification for wire rope (oil and gas) - ASME B30.16 Current
Underhung and stationary hoists - ASME B30.2 Current
Overhead and gantry cranes: operation, inspection - ASME B30.20 Current
Below-the-hook devices: marking, inspection - ASME BTH-1 Current
Design of below-the-hook devices - ASTM A1023 Current
Carbon steel wire ropes for general purposes - ASTM A391 Current
Grade 80 alloy steel chain