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Technical Data Sheet
PartsTable / COMPONENT / 550-250-18-267
550-250-18-267 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The BRAZING ALLOY,SILVER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 922 OVERALL, body_type: CORED, head_type: SOLID, core_depth: 0.050 INCHES NOMINAL IN, drive_end_style: RAISED SQUARE, connection_style: PLAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-2993, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
550-250-18-267
NSN: 4730-00-278-2993
FSC: 4730
CAGE: 10941 — CARVER PUMP COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY 922 OVERALL
body_typeCORED
head_typeSOLID
core_depth0.050 INCHES NOMINAL IN
drive_end_styleRAISED SQUARE
connection_stylePLAIN
body_core_diameter0.438 INCHES NOMINAL IN
material_document_and_classificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_pipe_size_for_which_designed0.375 INCHES IN
NSN4730-00-278-2993
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 550-250-18-267 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BODY CORE DIAMETER: 0.438 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY 922 OVERALL
•
DRIVE END STYLE: RAISED SQUARE
•
BODY TYPE: CORED
•
CORE DEPTH: 0.050 INCHES NOMINAL IN
•
CONNECTION STYLE: PLAIN
•
HEAD TYPE: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY CORE DIAMETER0.438 INCHES NOMINAL IN
MATERIALCOPPER ALLOY 922 OVERALL
DRIVE END STYLERAISED SQUARE
BODY TYPECORED
CORE DEPTH0.050 INCHES NOMINAL IN
CONNECTION STYLEPLAIN
HEAD TYPESOLID
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.375 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
MIL-DTL-1183/7Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-1183Interchangeable
interchangeable cross-reference
interchangeable
M1183/7-03Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-1183GInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-1183FIG18Interchangeable
interchangeable cross-reference
interchangeable
M1183/7-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 550-250-18-267?
550-250-18-267 is a BRAZING ALLOY,SILVER.
What parts can replace 550-250-18-267?
There are 25 known substitutes for 550-250-18-267: MIL-DTL-1183/7, MIL-F-1183, M1183/7-03 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 550-250-18-267?
550-250-18-267 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-2993. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026