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PartsTable / COMPONENT / 4000-37330 ITEM 8
4000-37330 ITEM 8 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, special_features: LARGE PISTON, end_item_identification: LOS ANGELES CLASS SSN (688), valve_design_control_activity: 07270, valve_type_for_which_designed: DIRECTIONAL CONTROL LINEAR, valve_model_number_for_which_designed: 4000SB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-420-2139, 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
4000-37330 ITEM 8
NSN: 4820-01-420-2139
FSC: 4820
CAGE: 07270 — MOOG INC. DBA AMPAC-ISP CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
special_featuresLARGE PISTON
end_item_identificationLOS ANGELES CLASS SSN (688)
valve_design_control_activity07270
valve_type_for_which_designedDIRECTIONAL CONTROL LINEAR
valve_model_number_for_which_designed4000SB
NSN4820-01-420-2139
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4000-37330 ITEM 8 · 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
•
MATERIAL: ALUMINUM ALLOY
•
VALVE TYPE FOR WHICH DESIGNED: DIRECTIONAL CONTROL LINEAR
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 4000SB
•
VALVE DESIGN CONTROL ACTIVITY: 07270
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY
VALVE TYPE FOR WHICH DESIGNEDDIRECTIONAL CONTROL LINEAR
END ITEM IDENTIFICATIONLOS ANGELES CLASS SSN (688)
VALVE MODEL NUMBER FOR WHICH DESIGNED4000SB
VALVE DESIGN CONTROL ACTIVITY07270
SPECIAL FEATURESLARGE PISTON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3-7338Interchangeable
interchangeable cross-reference
interchangeable
211033392Interchangeable
interchangeable cross-reference
interchangeable
751-6402503 FIND 4Interchangeable
interchangeable cross-reference
interchangeable
751-6402502 FIND 4Interchangeable
interchangeable cross-reference
interchangeable
37333Interchangeable
interchangeable cross-reference
interchangeable
4000-37330Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4000-37330 ITEM 8?
4000-37330 ITEM 8 is a PISTON,VALVE.
What parts can replace 4000-37330 ITEM 8?
There are 15 known substitutes for 4000-37330 ITEM 8: 3-7338, 211033392, 751-6402503 FIND 4 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4000-37330 ITEM 8?
4000-37330 ITEM 8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-420-2139. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026