MSS SP-97 Integrally reinforced branch outlets
CurrentLatest edition found. Still confirm amendments with the publisher.
- Edition
- 2025
- Publisher
- MSS
- Part family
- Pipes, flanges & gaskets
- Reviewed
- 12 October 2026 · source checked
Is MSS SP-97 still current?
Yes. 2025 is the latest edition MechAtlas found (MechAtlas review: 12 October 2026). Check the publisher for amendments before you specify it.
What it covers
Forged branch outlet fittings with applicable end connections.
- Material
- Steel
- Typical application
- Process piping
- What you specify
- Run size; branch size; end connection
- Watch out
- Check class, reinforcement and material separately.
Parts that use MSS SP-97
- Forged fitting (socket-weld / threaded) (USA (ASME / ASTM), related)
Small-bore forged elbows, tees, couplings, unions and branch outlets joined by socket welding or threads.
Integrally reinforced branch outlets (olets).
Official source
MechAtlas does not reproduce standards. Check the official edition at the publisher's page for MSS SP-97 or the MSS store.
Open in MechAtlasCheck a drawing callout
Other pipes, flanges & gaskets standards
- DIN 2633 Replaced
Weld-neck flanges PN 16 (old DIN) - IS 13159-1 Withdrawn
Pipe flanges, dimensions - EN 10217-1 Changing
Welded pressure tubes, room temperature - EN 1092-1 Changing
Steel flanges, PN designated - API 5L Current
Line pipe - ASME B16.20 / B16.21 Current
Metallic / non-metallic gaskets - ASME B16.47 Current
Large flanges NPS 26–60, Series A and B (do not mate) - ASME B16.5 Current
Pipe flanges & flanged fittings - ASME B16.9 Current
Wrought butt-welding fittings - ASME B16.9 / B16.11 Current
Butt-weld / forged socket-weld & threaded fittings - ASME B36.10 Current
Welded & seamless wrought steel pipe - ASME B36.19 Current
Stainless steel pipe dimensions