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11308388 ✓ 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 TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include seat_type: BALL, seat_radius: 0.500 INCHES NOMINAL IN, flange_thickness: 0.160 INCHES NOMINAL IN, special_features: FITTING DESIGN 90 DEG ANGLE, end_connection_type: SWEAT SOLDER, flange_outside_diameter: 1.810 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-159-8311, 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
11308388
NSN: 4730-00-159-8311
FSC: 4730
CAGE: 17773 — BALLISTIC MISSILE DEFENSE SYSTEMS COMMAND (USA)
SPECIFICATIONS
seat_typeBALL
seat_radius0.500 INCHES NOMINAL IN
flange_thickness0.160 INCHES NOMINAL IN
special_featuresFITTING DESIGN 90 DEG ANGLE
end_connection_typeSWEAT SOLDER
flange_outside_diameter1.810 INCHES NOMINAL IN
tubing_outside_diameter1.128 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
NSN4730-00-159-8311
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 11308388 · 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
•
TUBING OUTSIDE DIAMETER: 1.128 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
•
SEAT TYPE: BALL
•
END CONNECTION TYPE: SWEAT SOLDER
•
SEAT RADIUS: 0.500 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.160 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
TUBING OUTSIDE DIAMETER1.128 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
SEAT TYPEBALL
END CONNECTION TYPESWEAT SOLDER
SPECIAL FEATURESFITTING DESIGN 90 DEG ANGLE
SPECIAL FEATURESFITTING DESIGN 90 DEG ANGLE
SEAT TYPEBALL
SEAT RADIUS0.500 INCHES NOMINAL IN
FLANGE THICKNESS0.160 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER1.810 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
T762Interchangeable
interchangeable cross-reference
interchangeable
A3094Interchangeable
interchangeable cross-reference
interchangeable
10557403-1Interchangeable
interchangeable cross-reference
interchangeable
RELEASE 4901Interchangeable
interchangeable cross-reference
interchangeable
6L.5512.237.00-007789Interchangeable
interchangeable cross-reference
interchangeable
2N3583Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11308388?
11308388 is a TAILPIECE,UNION.
What parts can replace 11308388?
There are 6 known substitutes for 11308388: T762, A3094, 10557403-1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11308388?
11308388 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-159-8311. 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