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3971066 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

3971066: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include body_style: STRAIGHT THRU, end_item_identification: ENGINE, DIESEL QSL9-404 HP, part_name_assigned_by_controlling_agency: PRESSURE REGULATOR. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-727-5318, 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
3971066
NSN: 4820-01-727-5318
FSC: 4820 — Valves, Nonpowered
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
body_styleSTRAIGHT THRU
end_item_identificationENGINE, DIESEL QSL9-404 HP
part_name_assigned_by_controlling_agencyPRESSURE REGULATOR
NSN4820-01-727-5318
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 3971066 · 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
•
BODY STYLE: STRAIGHT THRU
TECHNICAL CHARACTERISTICS
BODY STYLESTRAIGHT THRU
PART NAME ASSIGNED BY CONTROLLING AGENCYPRESSURE REGULATOR
END ITEM IDENTIFICATIONENGINE, DIESEL QSL9-404 HP
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3971066?
3971066 is a VALVE,REGULATING,FLUID PRESSURE.
What is the NSN for 3971066?
3971066 is cataloged in the U.S. Government catalog under NSN 4820-01-727-5318. 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.