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Technical Data Sheet
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222785 — CHAMBER,AIR BRAKE

✓ Government record, cited
Hama · HOSE FITTING
PRODUCT OVERVIEW

222785: CHAMBER,AIR BRAKE.

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Government catalog under NSN 4730-00-091-5355, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
222785
NSN: 4730-00-091-5355
NIINs: 000915355, 008571806, 010486044
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
special_featuresCLEVIS PIN INCLUDED
line_connection_thread_size_and_series/type_designator0.250-18 NPTF
NSN4730-00-091-5355
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 222785 · Hama ⚠ 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL OVERALL LENGTH: 1.280 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
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SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.280 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
NOMINAL THREAD SIZE1.062 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES FIRST END
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A ALL ENDS A
THREAD QUANTITY PER INCH12 SECOND END
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 222785?
222785 is a CHAMBER,AIR BRAKE manufactured by Hama.
What is the NSN for 222785?
222785 is cataloged in the U.S. Government catalog under NSN 4730-00-091-5355. This indicates validated use in U.S. government and defense supply chains.
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