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MAS12521 — VALVE,REGULATING,FLUID PRESSURE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

MAS12521: VALVE,REGULATING,FLUID PRESSURE.

VALVE,REGULATING,FLUID PRESSURE. Key specifications include end_item_identification: MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; AND MRAP BUFFALO MK2A2; MRAP - COUGAR CAT2 A2, media_for_which_designed: AIR, part_name_assigned_by_controlling_agency: VALVE,AIR PRESSURE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-563-1830, 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
MAS12521
NSN: 4820-01-563-1830
FSC: 4820 — Valves, Nonpowered
CAGE: U7887 — NP AEROSPACE LIMITED (GBR)
SPECIFICATIONS
end_item_identificationMRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; AND MRAP BUFFALO MK2A2; MRAP - COUGAR CAT2 A2
media_for_which_designedAIR
part_name_assigned_by_controlling_agencyVALVE,AIR PRESSURE
NSN4820-01-563-1830
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: MAS12521 · 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
•
MEDIA FOR WHICH DESIGNED: AIR
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE,AIR PRESSURE
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; AND MRAP BUFFALO MK2A2; MRAP - COUGAR CAT2 A2
MEDIA FOR WHICH DESIGNEDAIR
SUBSTITUTES & CROSS-REFERENCES 2
20QE 4194Reference document
Same NSN cross-reference
Reference document — Secondary reference
745-801620Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MAS12521?
MAS12521 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace MAS12521?
There are 2 known substitutes for MAS12521: 20QE 4194, 745-801620. Substitute compatibility should be verified for your specific system.
What is the NSN for MAS12521?
MAS12521 is cataloged in the U.S. Government catalog under NSN 4820-01-563-1830. This indicates validated use in U.S. government and defense supply chains.
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