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12-8 520120C — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

12-8 520120C: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 12L14 OVERALL, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: GASKET SEAL (TUBE) FIRST END, operating_pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.750 INCHES SECOND END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-282-1703, 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
12-8 520120C
NSN: 4730-01-282-1703
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 12L14 OVERALL
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_styleGASKET SEAL (TUBE) FIRST END
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES SECOND END IN
nominal_overall_length1.906 INCHES IN
end_item_identificationSVA CRANE, ROUGH TERRAIN CONTAINER, X009
thread_quantity_per_inch12 FIRST END
thread_series_designatorUN FIRST END
nondefinitive_spec/std_data11 FIGURE
specification/standard_data81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4730-01-282-1703
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12-8 520120C · 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: 1 PREFORMED PACKING
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.906 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES FIRST END IN
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 PREFORMED PACKING
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEGASKET SEAL (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.906 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST END IN
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE1.187 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 5
12-8F5OLO-SReference document
Same NSN cross-reference
Reference document — Secondary reference
J1453Reference document
Same NSN cross-reference
Reference document — Secondary reference
7-447-120801Reference document
Same NSN cross-reference
Reference document — Secondary reference
1569870Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-J1453/3Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 12-8 520120C?
12-8 520120C is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 12-8 520120C?
There are 5 known substitutes for 12-8 520120C: 12-8F5OLO-S, J1453, 7-447-120801 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12-8 520120C?
12-8 520120C is cataloged in the U.S. Government catalog under NSN 4730-01-282-1703. 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.