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2401-444 — LOCK,GUN SAFETY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2401-444: LOCK,GUN SAFETY.

The LOCK,GUN SAFETY is a the manufacturer industrial component. Key specifications include end_item_identification: SIGMCX851, part_name_assigned_by_controlling_agency: FIRING PIN LOCK. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-145-7682, 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
2401-444
NSN: 4820-01-145-7682
NIINs: 011457682, 011457683, 016867846
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
end_item_identificationSIGMCX851
part_name_assigned_by_controlling_agencyFIRING PIN LOCK
NSN4820-01-145-7682
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2401-444 · 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
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MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
506-5588321Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
2401-444 PART 14Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 2401-444?
2401-444 is a LOCK,GUN SAFETY.
What parts can replace 2401-444?
There are 2 known substitutes for 2401-444: 506-5588321, 2401-444 PART 14. Substitute compatibility should be verified for your specific system.
What is the NSN for 2401-444?
2401-444 is cataloged in the U.S. Government catalog under NSN 4820-01-145-7682. 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.