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Technical Data Sheet
PartsTable / COMPONENT / 7M27C12
7M27C12 ✓ 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

SEAL,CONICAL,FLARED TUBE FITTING. Key specifications include material: COPPER ALLOY, body_length: 0.105 INCHES NOMINAL IN, wall_thickness: 0.010 INCHES NOMINAL IN, outside_diameter: 0.958 INCHES NOMINAL IN, special_features: ALL PARTS SHALL BE CLEANED AND PACKAGED IN ACCORDANCE WITH MAC SPECIFICATION 27M100, style_designator: SEAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-078-8519, 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
7M27C12
NSN: 4730-00-078-8519
FSC: 4730
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_length0.105 INCHES NOMINAL IN
wall_thickness0.010 INCHES NOMINAL IN
outside_diameter0.958 INCHES NOMINAL IN
special_featuresALL PARTS SHALL BE CLEANED AND PACKAGED IN ACCORDANCE WITH MAC SPECIFICATION 27M100
style_designatorSEAL
seat_angle_in_deg37.0
casehardening_indicatorNOT CASEHARDENED
hose/tube_outside_diameter_for_which_designed0.750 INCHES NOMINAL IN
NSN4730-00-078-8519
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M27C12 · 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
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SEAL
•
SEAT ANGLE IN DEG: 37.0
•
BODY LENGTH: 0.105 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.958 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS (FLIS)
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
STYLE DESIGNATORSEAL
SEAT ANGLE IN DEG37.0
BODY LENGTH0.105 INCHES NOMINAL IN
OUTSIDE DIAMETER0.958 INCHES NOMINAL IN
SPECIAL FEATURESALL PARTS SHALL BE CLEANED AND PACKAGED IN ACCORDANCE WITH MAC SPECIFICATION 27M100
MATERIALCOPPER ALLOY
CASEHARDENING INDICATORNOT CASEHARDENED
WALL THICKNESS0.010 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
10630103-57Interchangeable
interchangeable cross-reference
interchangeable
VSF1015C12Interchangeable
interchangeable cross-reference
interchangeable
44300-550-1Interchangeable
interchangeable cross-reference
interchangeable
VSF1015A4Interchangeable
interchangeable cross-reference
interchangeable
7A4Interchangeable
interchangeable cross-reference
interchangeable
SEC027A6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7M27C12?
7M27C12 is a SEAL,CONICAL,FLARED TUBE FITTING.
What parts can replace 7M27C12?
There are 28 known substitutes for 7M27C12: 10630103-57, VSF1015C12, 44300-550-1 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7M27C12?
7M27C12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-078-8519. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026