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33603 — HUB AND DRUM ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

33603: HUB AND DRUM ASSEMBLY.

The HUB AND DRUM ASSEMBLY is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: SOCKET SET SAE IMPA. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-393-7340, 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
33603
NSN: 4820-00-393-7340
NIINs: 003937340, 010651993, 011994869, 012825589, 016493089
FSC: 4820 — Valves, Nonpowered
CAGE: 45RP7 — DRESSTA NORTH AMERICA LTD (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencySOCKET SET SAE IMPA
NSN4820-00-393-7340
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 33603 · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU W/BAFFLE
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 5
1755760Reference document
Same NSN cross-reference
Reference document — Secondary reference
G-313650Reference document
Same NSN cross-reference
Reference document — Secondary reference
D33603Reference document
Same NSN cross-reference
Reference document — Secondary reference
2520007824162Reference document
Same NSN cross-reference
Reference document — Informative reference only
S3432Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 33603?
33603 is a HUB AND DRUM ASSEMBLY.
What parts can replace 33603?
There are 5 known substitutes for 33603: 1755760, G-313650, D33603 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 33603?
33603 is cataloged in the U.S. Government catalog under NSN 4820-00-393-7340. 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.