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Technical Data Sheet
PartsTable / COMPONENT / 7827256-11
7827256-11 ✓ 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: 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN, wall_thickness: 0.005 INCHES NOMINAL IN, outside_diameter: 0.486 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN, style_designator: SEAL, seat_angle_in_deg: 37.0. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-070-3103, 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
7827256-11
NSN: 4730-01-070-3103
FSC: 4730
CAGE: 98748 — AIR FORCE UNITED STATES DEPARTMENT OF THE DBA TINKER AFB OC ALC DSP DIV DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 1100
body_length0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
wall_thickness0.005 INCHES NOMINAL IN
outside_diameter0.486 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN
style_designatorSEAL
seat_angle_in_deg37.0
casehardening_indicatorNOT CASEHARDENED
end_item_identificationAIRCRAFT, STRATOLIFTER C-135
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_designed0.375 INCHES NOMINAL IN
NSN4730-01-070-3103
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7827256-11 · 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
•
BODY LENGTH: 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.486 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN
•
SEAT ANGLE IN DEG: 37.0
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/1,O FED SPEC 1ST MATERIAL RESPONSE OR AMS 4001 ASSN STD 2ND MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 1100
•
STYLE DESIGNATOR: SEAL
TECHNICAL CHARACTERISTICS (FLIS)
BODY LENGTH0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONAIRCRAFT, STRATOLIFTER C-135
OUTSIDE DIAMETER0.486 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN
SEAT ANGLE IN DEG37.0
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1,O FED SPEC 1ST MATERIAL RESPONSE OR AMS 4001 ASSN STD 2ND MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 1100
STYLE DESIGNATORSEAL
WALL THICKNESS0.005 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
7A6Interchangeable
interchangeable cross-reference
interchangeable
MILE1Interchangeable
interchangeable cross-reference
interchangeable
RELEASE140Interchangeable
interchangeable cross-reference
interchangeable
VSF1015A32Interchangeable
interchangeable cross-reference
interchangeable
10630103-31Interchangeable
interchangeable cross-reference
interchangeable
SEC027A6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7827256-11?
7827256-11 is a SEAL,CONICAL,FLARED TUBE FITTING.
What parts can replace 7827256-11?
There are 25 known substitutes for 7827256-11: 7A6, MILE1, RELEASE140 and 22 more. Substitute compatibility should be verified for your specific system.
Is 7827256-11 still available?
7827256-11 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026