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SS-DLTW4 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

SS-DLTW4: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: NOT INCLUDED, body_style: STRAIGHT THRU, special_features: MATERIAL, 316L SS/A479, BODY AND STEM; 316SS/A240, DIAPHRAGM; ALUMINUM T3/B2LL, ACTUATING LEVER, flow_control_device: DIAPHRAGM, valve_loading_method: SPRING, media_for_which_designed: AIR AND WATER. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-477-9798, 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
SS-DLTW4
NSN: 4820-01-477-9798
FSC: 4820 — Valves, Nonpowered
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
filterNOT INCLUDED
body_styleSTRAIGHT THRU
special_featuresMATERIAL, 316L SS/A479, BODY AND STEM; 316SS/A240, DIAPHRAGM; ALUMINUM T3/B2LL, ACTUATING LEVER
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
end_connection_quantity2
media_for_which_designedAIR AND WATER
maximum_inlet_pressure_ratingERR-060
part_name_assigned_by_controlling_agencyDIAPHRAGM VALVE
NSN4820-01-477-9798
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SS-DLTW4 · 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: DIAPHRAGM
•
BODY STYLE: STRAIGHT THRU
•
END CONNECTION QUANTITY: 2
•
VALVE LOADING METHOD: SPRING
•
MEDIA FOR WHICH DESIGNED: AIR AND WATER
•
MAXIMUM INLET PRESSURE RATING: ERR-060
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDIAPHRAGM
BODY STYLESTRAIGHT THRU
END CONNECTION QUANTITY2
VALVE LOADING METHODSPRING
SPECIAL FEATURESMATERIAL, 316L SS/A479, BODY AND STEM; 316SS/A240, DIAPHRAGM; ALUMINUM T3/B2LL, ACTUATING LEVER
PART NAME ASSIGNED BY CONTROLLING AGENCYDIAPHRAGM VALVE
MEDIA FOR WHICH DESIGNEDAIR AND WATER
MAXIMUM INLET PRESSURE RATINGERR-060
FILTERNOT INCLUDED
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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 SS-DLTW4?
SS-DLTW4 is a VALVE,REGULATING,FLUID PRESSURE.
What is the NSN for SS-DLTW4?
SS-DLTW4 is cataloged in the U.S. Government catalog under NSN 4820-01-477-9798. 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.