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PartsTable / COMPONENT / 15877G P/N MA15550-2T
15877G P/N MA15550-2T ✓ 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 15877G P/N MA15550-2T is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-419-1676, 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
15877G P/N MA15550-2T
NSN: 4820-01-419-1676
FSC: 4820
CAGE: 97399 — DRAGON VALVES INC (USA)
SPECIFICATIONS
Part Number15877G P/N MA15550-2T
NSN4820-01-419-1676
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 15877G P/N MA15550-2T · 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: NICKEL ALLOY STEM
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
STYLE DESIGNATOR: ANGLE
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
BONNET TYPE: INSIDE SCREW
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY STEM
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORANGLE
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
BONNET TYPEINSIDE SCREW
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
CONNECTION STYLESOCKET (TUBE) ALL ENDS
MATERIALNICKEL ALLOY BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
15877Interchangeable
interchangeable cross-reference
interchangeable
15877-01Interchangeable
interchangeable cross-reference
interchangeable
10381262Interchangeable
interchangeable cross-reference
interchangeable
8699970001Interchangeable
interchangeable cross-reference
interchangeable
02-5-14-1285ITEM2-29Interchangeable
interchangeable cross-reference
interchangeable
3019/8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 15877G P/N MA15550-2T?
15877G P/N MA15550-2T is a 15877G P/N MA15550-2T.
What parts can replace 15877G P/N MA15550-2T?
There are 13 known substitutes for 15877G P/N MA15550-2T: 15877, 15877-01, 10381262 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 15877G P/N MA15550-2T?
15877G P/N MA15550-2T is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-419-1676. 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