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Technical Data Sheet
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4.9026.0 — COVER,VENTILATORY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4.9026.0: COVER,VENTILATORY.

The COVER,VENTILATORY is a the manufacturer industrial component. Key specifications include end_item_identification: KAESER COMPRESSOR MODEL AS 30/35, valve_type_for_which_designed: RELIEF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-228-7711, 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
4.9026.0
NSN: 4730-01-228-7711
NIINs: 012287711, 013908205, 016533627
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 72741 — DORMAN PRODUCTS, INC. DBA DORMAN (USA)
SPECIFICATIONS
end_item_identificationKAESER COMPRESSOR MODEL AS 30/35
valve_type_for_which_designedRELIEF
NSN4730-01-228-7711
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4.9026.0 · 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
•
CONNECTION STYLE: PLAIN (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 0.940 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH0.940 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.250 INCHES SECOND END IN
THREAD CLASS2B FIRST END
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4.9026.0?
4.9026.0 is a COVER,VENTILATORY.
What is the NSN for 4.9026.0?
4.9026.0 is cataloged in the U.S. Government catalog under NSN 4730-01-228-7711. 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.