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19012233 — INVERTED NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

19012233: INVERTED NUT,TUBE COUPLING.

The INVERTED NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416SE, thread_size: 3/4-16, thread_class: 3A A, overall_length: 0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN, style_designator: INVERTED NUT, TUBE, COMPRESSION, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-780-1137, 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
19012233
NSN: 4730-00-780-1137
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 02250 — CURTISS-WRIGHT CONTROLS INTEGRATED SENSING, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 416SE
thread_size3/4-16
thread_class3A A
overall_length0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
style_designatorINVERTED NUT, TUBE, COMPRESSION
thread_directionRIGHT-HAND
seat_angle_in_deg45.0
fabrication_methodFORGED
width_across_flats0.875 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
smallest_inside_diameter0.499 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN
NSN4730-00-780-1137
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 19012233 · 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
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
SEAT ANGLE IN DEG: 45.0
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: INVERTED NUT, TUBE, COMPRESSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
MATERIAL HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
SEAT ANGLE IN DEG45.0
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.750 INCHES NOMINAL IN
STYLE DESIGNATORINVERTED NUT, TUBE, COMPRESSION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5610 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE3/4-16
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
KW12233Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 19012233?
19012233 is a INVERTED NUT,TUBE COUPLING.
What parts can replace 19012233?
There is 1 known substitute for 19012233: KW12233. Substitute compatibility should be verified for your specific system.
What is the NSN for 19012233?
19012233 is cataloged in the U.S. Government catalog under NSN 4730-00-780-1137. 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.