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AP1023-8D — NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AP1023-8D: NUT,TUBE COUPLING.

The NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN, seat_angle: 45.00 DEGREES NOMINAL, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 4730-01-207-2429, 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
AP1023-8D
NSN: 4730-01-207-2429
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01673 — SPS TECHNOLOGIES, LLC DBA AIRDROME PRECISION COMPONENTS (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
nut_styleTUBE COUPLING
nut_height0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
seat_angle45.00 DEGREES NOMINAL
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
length_to_shoulder0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN
width_across_flats0.871 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN
nominal_thread_size0.750 INCHES IN
smallest_inside_diameter0.552 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
NSN4730-01-207-2429
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AP1023-8D · 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
•
LENGTH TO SHOULDER: 0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.871 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
NUT HEIGHT: 0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.599 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.871 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
SEAT ANGLE45.00 DEGREES NOMINAL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
NUT HEIGHT0.850 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLETUBE COUPLING
THREAD CLASS3B
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 6
BACN10CS-08DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2-03000-8DReference document
Same NSN cross-reference
Reference document — Secondary reference
US1932-8DReference document
Same NSN cross-reference
Reference document — Secondary reference
AFP101-8DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
DB0N10CS-8DReference document
Same NSN cross-reference
Reference document — Secondary reference
FER22668-8DSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AP1023-8D?
AP1023-8D is a NUT,TUBE COUPLING.
What parts can replace AP1023-8D?
There are 6 known substitutes for AP1023-8D: BACN10CS-08D, 2-03000-8D, US1932-8D and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AP1023-8D?
AP1023-8D is cataloged in the U.S. Government catalog under NSN 4730-01-207-2429. 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.