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8-8-8 520401SA — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8-8-8 520401SA: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 1.100 INCHES NOMINAL ALL ENDS IN, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: GASKET SEAL (TUBE) ALL ENDS, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-514-3542, 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
8-8-8 520401SA
NSN: 4730-01-514-3542
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length1.100 INCHES NOMINAL ALL ENDS IN
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGASKET SEAL (TUBE) ALL ENDS
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.812 INCHES ALL ENDS IN
end_item_identificationSHIP
thread_quantity_per_inch16 ALL ENDS
thread_series_designatorUN ALL ENDS
nondefinitive_spec/std_data18 FIGURE
specification/standard_data81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-01-514-3542
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8-8-8 520401SA · 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
•
FURNISHED ITEMS AND QUANTITY: 3 PREFORMED PACKING
•
CONNECTION STYLE: GASKET SEAL (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
LEG LENGTH: 1.100 INCHES NOMINAL ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.812 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 18 FIGURE
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY3 PREFORMED PACKING
CONNECTION STYLEGASKET SEAL (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
LEG LENGTH1.100 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE0.812 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA18 FIGURE
SURFACE TREATMENTPASSIVATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYMAL ORFS TEE
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 2
844-TT-08 SSReference document
Same NSN cross-reference
Reference document — Design control — primary reference
J1453Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8-8-8 520401SA?
8-8-8 520401SA is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 8-8-8 520401SA?
There are 2 known substitutes for 8-8-8 520401SA: 844-TT-08 SS, J1453. Substitute compatibility should be verified for your specific system.
What is the NSN for 8-8-8 520401SA?
8-8-8 520401SA is cataloged in the U.S. Government catalog under NSN 4730-01-514-3542. 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.