MIL-DTL-1183 / M1183 Bronze Fittings
BEC Machine Products provides Bronze Sil-Braze fittings identified in accordance with the U.S. Navy M1183 military specification and MIL-DTL-1183.
The M1183 specification establishes product identification requirements designed to help ensure consistency, material quality, and compatibility for applicable fittings.
BEC uses a structured four-part identification system to simplify product identification and ordering.
MIL-F-1183 and MIL-DTL-1183
MIL-F-1183 is an older revision of MIL-DTL-1183 and remains a commonly used search term. BEC Machine Products’ M1183 Bronze Sil-Braze product line corresponds to the MIL-DTL-1183 specification.
How the M1183 Part Number System Works
BEC part numbers begin with the military specification designation, followed by identifiers for the fitting type, size, and end preparation/socket condition.
Example:
M1183/9-100A
This identifies a 1″ Sil-Braze tee with Sil-Braze rings separately packaged and attached.
Bronze Sil-Braze Product Types
BEC’s Bronze Sil-Braze product line includes:
- Elbows & Returns
- Tees
- Y-Laterals & Crosses
- Bushings & Couplings
- Adapters, Caps & Plugs
- Union Assemblies, Threadpieces & Tailpieces
- Flanges
Need Help Identifying a Part?
BEC Machine Products can assist customers with product identification, specifications, drawings, and custom manufacturing requirements.
Contact BEC Machine Products for additional product information or to request a quote.

