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403687 — VALVE,HOLD,BOOM HOIST CYLINDER

✓ Government record, cited
EMSA · GATE VALVE
PRODUCT OVERVIEW

403687: VALVE,HOLD,BOOM HOIST CYLINDER.

- Size: 0.5L (16.91 fl. oz.) - With Soft-Touch collar - With double-walled stainless-steel liner - 100% leak-proof - Opens with the press of a button - 360° drinking from all sides - Closure can be taken apart for easy cleaning This part is cataloged in the U.S. Government catalog under NSN 4820-01-481-5040, 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
403687
NSN: 4820-01-481-5040
FSC: 4820 — Valves, Nonpowered
CAGE: 5X050 — CRYSTEEL MANUFACTURING, INC DBA CRYSTEEL MANUFACTURING INC (USA)
SPECIFICATIONS
materialSTEEL BODY
valve_operation_methodMANUALMANUAL
end_connection_quantity22
end_item_identification3990-01-443-8024; USED ON PALLETIZED LOADING SYSTEM3990-01-443-8024; USED ON PALLETIZED LOADING SYSTEM
NSN4820-01-481-5040
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 403687 · EMSA ⚠ 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
•
END CONNECTION QUANTITY: 22
•
MATERIAL: STEEL BODY
•
VALVE OPERATION METHOD: MANUALMANUAL
TECHNICAL CHARACTERISTICS
END CONNECTION QUANTITY22
END ITEM IDENTIFICATION3990-01-443-8024; USED ON PALLETIZED LOADING SYSTEM3990-01-443-8024; USED ON PALLETIZED LOADING SYSTEM
MATERIALSTEEL BODY
VALVE OPERATION METHODMANUALMANUAL
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 403687?
403687 is a VALVE,HOLD,BOOM HOIST CYLINDER manufactured by EMSA.
What is the NSN for 403687?
403687 is cataloged in the U.S. Government catalog under NSN 4820-01-481-5040. 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.