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2HG309 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2HG309: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, leg_length: 0.984 INCHES NOMINAL THIRD END IN, thread_class: 2A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: GASKET SEAL (TUBE) ALL ENDS, special_features: SPECIAL O-RING MATERIAL, PER MIL-P-5510C, DO NOT DUPE TO ANY OTHER NSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-351-9943, 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
2HG309
NSN: 4730-01-351-9943
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
leg_length0.984 INCHES NOMINAL THIRD END IN
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleGASKET SEAL (TUBE) ALL ENDS
special_featuresSPECIAL O-RING MATERIAL, PER MIL-P-5510C, DO NOT DUPE TO ANY OTHER NSN
surface_treatmentCADMIUM OR ZINC OR PHOSPHATE OVERALL
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.688 INCHES ALL ENDS IN
end_item_identificationARMORED MULTI-PURPOSE VEHICLE (AMPV)
thread_quantity_per_inch16 ALL ENDS
thread_series_designatorUN ALL ENDS
NSN4730-01-351-9943
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2HG309 · 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: 0.375 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 0.984 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY3 PREFORMED PACKING
CONNECTION STYLEGASKET SEAL (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH0.984 INCHES NOMINAL FIRST END IN
LEG LENGTH0.984 INCHES NOMINAL SECOND END IN
LEG LENGTH0.984 INCHES NOMINAL THIRD END IN
NOMINAL THREAD SIZE0.688 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUBSTITUTES & CROSS-REFERENCES 7
FF1898T0606SReference document
Same NSN cross-reference
Reference document — Secondary reference
6-6-6 520401C-N507-90Reference document
Same NSN cross-reference
Reference document — Secondary reference
J1453Reference document
Same NSN cross-reference
Reference document — Secondary reference
6 JL0-S-N507-90Reference document
Same NSN cross-reference
Reference document — Secondary reference
6JLO-SReference document
Same NSN cross-reference
Reference document — Secondary reference
7-448-060611Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2HG309?
2HG309 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace 2HG309?
There are 7 known substitutes for 2HG309: FF1898T0606S, 6-6-6 520401C-N507-90, J1453 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2HG309?
2HG309 is cataloged in the U.S. Government catalog under NSN 4730-01-351-9943. 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.