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101B209XD — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

101B209XD: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL SEAT, flange_diameter: 2.532 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 30.000 NOMINAL, under_flange_height: 0.500 INCHES NOMINAL IN, body_inside_diameter: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-062-9591, 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
101B209XD
NSN: 4820-00-062-9591
FSC: 4820 — Valves, Nonpowered
CAGE: 03502 — GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT (USA)
SPECIFICATIONS
materialSTEEL SEAT
flange_diameter2.532 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg30.000 NOMINAL
under_flange_height0.500 INCHES NOMINAL IN
body_inside_diameter1.250 INCHES NOMINAL IN
body_outside_diameter2.000 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.500 INCHES NOMINAL IN
material_document_and_classificationMIL-S-18410 CL B,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
NSN4820-00-062-9591
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 101B209XD · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.500 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.532 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-18410 CL B,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
•
BODY INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL SEAT
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.500 INCHES NOMINAL IN
FLANGE DIAMETER2.532 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18410 CL B,COND A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
BODY INSIDE DIAMETER1.250 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL IN
MATERIALSTEEL SEAT
SEAT ANGLE IN DEG30.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 4
300-1138567PC2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
300-1138567-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
101B209XDP1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
101B209XDPC1Same 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 101B209XD?
101B209XD is a SEAT,VALVE.
What parts can replace 101B209XD?
There are 4 known substitutes for 101B209XD: 300-1138567PC2, 300-1138567-2, 101B209XDP1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 101B209XD?
101B209XD is cataloged in the U.S. Government catalog under NSN 4820-00-062-9591. 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.