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40947 — SEAL,AIR,AIRCRAFT GAS TURBINE EN

✓ Government record, cited
Hama · GATE VALVE
PRODUCT OVERVIEW

40947: SEAL,AIR,AIRCRAFT GAS TURBINE EN.

SEAL,AIR,AIRCRAFT GAS TURBINE EN. Key specifications include material: COPPER ALLOY 632 INTERNAL ROD END BODY, special_features: NHA TORPEDO SYSTEM DOLLY LOCK, end_item_identification: SEAWOLF CLASS SSN, material_document_and_classification: ASTM B-150/C63200 ASSN STD SINGLE MATERIAL RESPONSE INTERNAL ROD END BODY. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-722-3344, 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
40947
NSN: 4820-00-722-3344
NIINs: 007223344, 009668026, 011565081, 014751354
FSC: 4820 — Valves, Nonpowered
CAGE: 5RQL2 — DRS ENVIRONMENTAL SYSTEMS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 632 INTERNAL ROD END BODY
special_featuresNHA TORPEDO SYSTEM DOLLY LOCK
end_item_identificationSEAWOLF CLASS SSN
material_document_and_classificationASTM B-150/C63200 ASSN STD SINGLE MATERIAL RESPONSE INTERNAL ROD END BODY
NSN4820-00-722-3344
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 40947 · Hama ⚠ 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
•
FLANGE SEAT TO DISK END HEIGHT: 2.250 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.748 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT2.250 INCHES NOMINAL IN
OVERALL HEIGHT2.758 INCHES NOMINAL IN
OUTSIDE DIAMETER1.748 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40947?
40947 is a SEAL,AIR,AIRCRAFT GAS TURBINE EN manufactured by Hama.
What is the NSN for 40947?
40947 is cataloged in the U.S. Government catalog under NSN 4820-00-722-3344. 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.