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SECO27N16 — SEAL,CONICAL,FLARED TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SECO27N16: SEAL,CONICAL,FLARED TUBE FITTING.

SEAL,CONICAL,FLARED TUBE FITTING. Key specifications include material: NICKEL ALLOY 201, body_length: 0.125 INCHES NOMINAL IN, overall_length: 0.775 INCHES NOMINAL IN, wall_thickness: 0.010 INCHES NOMINAL IN, outside_diameter: 1.183 INCHES NOMINAL IN, style_designator: SEAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-477-9851, 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
SECO27N16
NSN: 4730-01-477-9851
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 33447 — SECO SEALS, INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY 201
body_length0.125 INCHES NOMINAL IN
overall_length0.775 INCHES NOMINAL IN
wall_thickness0.010 INCHES NOMINAL IN
outside_diameter1.183 INCHES NOMINAL IN
style_designatorSEAL
seat_angle_in_deg37.0
casehardening_indicatorCASEHARDENED
material_document_and_classificationAMS 5553, 201 ASSN STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencySEAL, CONICAL FLARED TUBE FITTING 37 DEGREE
hose/tube_outside_diameter_for_which_designed1.000 INCHES NOMINAL IN
NSN4730-01-477-9851
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SECO27N16 · 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
•
SEAT ANGLE IN DEG: 37.0
•
STYLE DESIGNATOR: SEAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5553, 201 ASSN STD SINGLE MATERIAL RESPONSE
•
WALL THICKNESS: 0.010 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.183 INCHES NOMINAL IN
•
BODY LENGTH: 0.125 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: CASEHARDENED
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG37.0
STYLE DESIGNATORSEAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5553, 201 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.775 INCHES NOMINAL IN
WALL THICKNESS0.010 INCHES NOMINAL IN
OUTSIDE DIAMETER1.183 INCHES NOMINAL IN
BODY LENGTH0.125 INCHES NOMINAL IN
CASEHARDENING INDICATORCASEHARDENED
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL, CONICAL FLARED TUBE FITTING 37 DEGREE
MATERIALNICKEL ALLOY 201
SUBSTITUTES & CROSS-REFERENCES 1
ST2286-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SECO27N16?
SECO27N16 is a SEAL,CONICAL,FLARED TUBE FITTING.
What parts can replace SECO27N16?
There is 1 known substitute for SECO27N16: ST2286-16. Substitute compatibility should be verified for your specific system.
What is the NSN for SECO27N16?
SECO27N16 is cataloged in the U.S. Government catalog under NSN 4730-01-477-9851. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.