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421487 — 421487

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

421487: 421487.

The 421487 is a the manufacturer industrial component. Key specifications include special_features: USED ON A PERISCOPE ASSY. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-882-6462, 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
MRO→ MRO_GENERAL→ 421487
NSN: 4820-00-882-6462
NIINs: 008826462, 012106967, 013520845, 014398304
FSC: 4820 — Valves, Nonpowered
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
special_featuresUSED ON A PERISCOPE ASSY
NSN4820-00-882-6462
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 421487 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 PLUGGED DRAIN
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
FLOW STYLE: FOUR-WAY FOUR PORT 90 DEGREE PLUG TURN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
FEATURES PROVIDED: NONADJUSTABLE ROTATION
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 PLUGGED DRAIN
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
FLOW STYLEFOUR-WAY FOUR PORT 90 DEGREE PLUG TURN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
FEATURES PROVIDEDNONADJUSTABLE ROTATION
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
MOUNTING FACILITYTHREADED FASTENER
SPECIAL FEATURESSERVICE DETERMINED BY TYPE OF SERVICE LUBRICANT ADDED BEFORE USE
SUBSTITUTES & CROSS-REFERENCES 3
271MAP1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LA1154Reference document
Same NSN cross-reference
Reference document — Secondary reference
P66706Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 421487?
421487 is a 421487. It is classified as a MRO (MRO_GENERAL).
What parts can replace 421487?
There are 3 known substitutes for 421487: 271MAP1, LA1154, P66706. Substitute compatibility should be verified for your specific system.
What is the NSN for 421487?
421487 is cataloged in the U.S. Government catalog under NSN 4820-00-882-6462. 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.