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34905A — HOSE ASSEMBLY,AIR DUCT,AIR BREAT

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

34905A: HOSE ASSEMBLY,AIR DUCT,AIR BREAT.

HOSE ASSEMBLY,AIR DUCT,AIR BREAT. This part is cataloged in the U.S. Government catalog under NSN 4820-00-202-8386, 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
MRO→ MRO_GENERAL→ 34905A
NSN: 4820-00-202-8386
NIINs: 002028386, 015031827
FSC: 4820 — Valves, Nonpowered
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
special_featuresINCLUDES DUAL 4-CHANNEL 50 OHM RF MODULE AND 10 CABLES, 50 OHM (SMB TO BNC); 2 GHZ BANDWIDTH; BROADBAND SWITCHING CAPABILITIES FOR HIGH-FREQUENCY AND PULSED SIGNALS GHz
NSN4820-00-202-8386
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 34905A · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW CONTROL DEVICE: DISK, BOTTOM GUIDED AND DISK, TOP GUIDED
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VALVE STEM DESIGN: SINGLE SEAT
•
RENEWABLE SEAT RING TYPE: THREADED
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
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BODY STYLE: STRAIGHT THRU
•
REGULATION TYPE: MANUAL SINGLE STAGE
•
FIRST END STYLE DESIGNATOR: STREAMLINED WITH ONE BRAZING RING
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK, BOTTOM GUIDED AND DISK, TOP GUIDED
VALVE STEM DESIGNSINGLE SEAT
RENEWABLE SEAT RING TYPETHREADED
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
BODY STYLESTRAIGHT THRU
REGULATION TYPEMANUAL SINGLE STAGE
FIRST END STYLE DESIGNATORSTREAMLINED WITH ONE BRAZING RING
END CONNECTION QUANTITY2
OUTLET PRESSURE RANGE25.0 TO 100.0 CAMERA MOUNT
MANUAL CONTROL METHODWHEEL
SUBSTITUTES & CROSS-REFERENCES 2
34905Reference document
Same NSN cross-reference
Reference document — Secondary reference
C3122Reference document
Same NSN cross-reference
Reference document — Secondary 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 34905A?
34905A is a HOSE ASSEMBLY,AIR DUCT,AIR BREAT. It is classified as a MRO (MRO_GENERAL).
What parts can replace 34905A?
There are 2 known substitutes for 34905A: 34905, C3122. Substitute compatibility should be verified for your specific system.
What is the NSN for 34905A?
34905A is cataloged in the U.S. Government catalog under NSN 4820-00-202-8386. 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.