PartsTable
Technical Data Sheet

1-1/4BHJS20 — ADAPTER,STRAIGHT,PIPE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1-1/4BHJS20: ADAPTER,STRAIGHT,PIPE TO HOSE.

The ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 0.310 RADIANS ALL ENDS, thread_class: 2A ALL ENDS A, connection_type: BUTT WELD PIPE ALL ENDS, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS, nominal_thread_size: 0.4375 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-460-2951, 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
1-1/4BHJS20
NSN: 4730-01-460-2951
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79926 — SSP FITTINGS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle0.310 RADIANS ALL ENDS
thread_class2A ALL ENDS A
connection_typeBUTT WELD PIPE ALL ENDS
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
nominal_thread_size0.4375 INCHES ALL ENDS IN
nominal_overall_length1.230 INCHES IN
end_item_identificationUSED ON SUPPORT EQUIPMENT (SE), B-2 BOMBER AIRCRAFT(MANIFOLD, CURING UNIT)
thread_quantity_per_inch12 ALL ENDS
thread_series_designatorUNF ALL ENDS
nominal_pipe_size_accommodated1.2500 INCHES ALL ENDS IN
NSN4730-01-460-2951
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1-1/4BHJS20 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.2500 INCHES ALL ENDS IN
•
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.230 INCHES IN
•
CONNECTION TYPE: BUTT WELD PIPE ALL ENDS
•
NOMINAL THREAD SIZE: 0.4375 INCHES ALL ENDS IN
•
SEAT ANGLE: 0.310 RADIANS ALL ENDS
•
THREAD CLASS: 2A ALL ENDS A
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED1.2500 INCHES ALL ENDS IN
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END ALL ENDS
NOMINAL OVERALL LENGTH1.230 INCHES IN
CONNECTION TYPEBUTT WELD PIPE ALL ENDS
NOMINAL THREAD SIZE0.4375 INCHES ALL ENDS IN
SEAT ANGLE0.310 RADIANS ALL ENDS
THREAD CLASS2A ALL ENDS A
END ITEM IDENTIFICATIONUSED ON SUPPORT EQUIPMENT (SE), B-2 BOMBER AIRCRAFT(MANIFOLD, CURING UNIT)
THREAD QUANTITY PER INCH12 ALL ENDS
MATERIALSTEEL OVERALL
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

No substitute or cross-reference records for this part.

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 1-1/4BHJS20?
1-1/4BHJS20 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What is the NSN for 1-1/4BHJS20?
1-1/4BHJS20 is cataloged in the U.S. Government catalog under NSN 4730-01-460-2951. 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.