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PartsTable / COMPONENT / SDM-1291 ITEM 5
SDM-1291 ITEM 5 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT, end_item_identification: 2.5 INCH SERIES 45 BALL VALVE IN, part_name_assigned_by_controlling_agency: SEAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-508-7880, 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
SDM-1291 ITEM 5
NSN: 4820-01-508-7880
FSC: 4820
CAGE: 98991 — WORCESTER CONTROLS CORP P O BOX 2609 COOKEVILLE TN 385022609 (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE SEAT
end_item_identification2.5 INCH SERIES 45 BALL VALVE IN
part_name_assigned_by_controlling_agencySEAT
NSN4820-01-508-7880
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SDM-1291 ITEM 5 · 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: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATION2.5 INCH SERIES 45 BALL VALVE IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
820A074Interchangeable
interchangeable cross-reference
interchangeable
430-2Interchangeable
interchangeable cross-reference
interchangeable
4250-020-119Interchangeable
interchangeable cross-reference
interchangeable
07201Interchangeable
interchangeable cross-reference
interchangeable
21" TRAINING BATON AND CARRIERInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SDM-1291 ITEM 5?
SDM-1291 ITEM 5 is a SEAT,VALVE.
What parts can replace SDM-1291 ITEM 5?
There are 5 known substitutes for SDM-1291 ITEM 5: 820A074, 430-2, 4250-020-119 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SDM-1291 ITEM 5?
SDM-1291 ITEM 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-508-7880. 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