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SECO7A12 ✓ 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: ALUMINUM ALLOY 1100, body_length: 0.090 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN, wall_thickness: 0.010 INCHES NOMINAL IN, outside_diameter: 0.958 INCHES MINIMUM AND 0.963 INCHES MAXIMUM IN, style_designator: SEAL, seat_angle_in_deg: 37.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-034-4805, 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
SECO7A12
NSN: 4730-01-034-4805
FSC: 4730
CAGE: 33447 — SECO SEALS, INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100
body_length0.090 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
wall_thickness0.010 INCHES NOMINAL IN
outside_diameter0.958 INCHES MINIMUM AND 0.963 INCHES MAXIMUM IN
style_designatorSEAL
seat_angle_in_deg37.0
casehardening_indicatorNOT CASEHARDENED
end_item_identificationAIRCRAFT, STRATOLIFTER C-135, MISSILE, MX PEACEKEEPER
material_document_and_classificationQQ-A-250/1,O FED SPEC 1ST MATERIAL RESPONSE OR AMS 4001 ASSN STD 2ND MATERIAL RESPONSE
hose/tube_outside_diameter_for_which_designed0.750 INCHES NOMINAL IN
NSN4730-01-034-4805
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SECO7A12 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
44300-550-4Interchangeable
interchangeable cross-reference
interchangeable
VSF1015A12Interchangeable
interchangeable cross-reference
interchangeable
SECO7A12Interchangeable
interchangeable cross-reference
interchangeable
DY90Interchangeable
interchangeable cross-reference
interchangeable
261-0320-005Interchangeable
interchangeable cross-reference
interchangeable
VSF1015Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SECO7A12?
SECO7A12 is a SEAL,CONICAL,FLARED TUBE FITTING.
What parts can replace SECO7A12?
There are 6 known substitutes for SECO7A12: 44300-550-4, VSF1015A12, SECO7A12 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SECO7A12?
SECO7A12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-034-4805. 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