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B1518SA — PROCESSOR,SIGNAL DATA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B1518SA: PROCESSOR,SIGNAL DATA.

The PROCESSOR,SIGNAL DATA is a the manufacturer processor designed for enterprise server workloads requiring multi-threaded performance and reliability. Key specifications include material: PLASTIC OVERALL, flange_diameter: 2.503 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, under_flange_height: 1.187 INCHES NOMINAL IN, body_outside_diameter: 2.400 INCHES NOMINAL IN, seating_surface_shape: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-956-8748, 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
B1518SA
NSN: 4820-00-956-8748
FSC: 4820 — Valves, Nonpowered
CAGE: 71905 — DERBYSHIRE MACHINE & TOOL CO (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
flange_diameter2.503 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
under_flange_height1.187 INCHES NOMINAL IN
body_outside_diameter2.400 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.125 INCHES NOMINAL IN
NSN4820-00-956-8748
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B1518SA · 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: 0.125 INCHES NOMINAL IN
•
FLANGE DIAMETER: 2.503 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.400 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN FLANGED
•
UNDER FLANGE HEIGHT: 1.187 INCHES NOMINAL IN
•
MATERIAL: PLASTIC OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
TYPICAL APPLICATIONS
  • Enterprise virtualization host density upgrades
  • Database server performance scaling
  • AI/ML inference workloads
  • High-performance computing (HPC) clusters
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.125 INCHES NOMINAL IN
FLANGE DIAMETER2.503 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.400 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT1.187 INCHES NOMINAL IN
MATERIALPLASTIC OVERALL
SEATING SURFACE SHAPEANGULAR
SUBSTITUTES & CROSS-REFERENCES 2
009-304-0025Reference document
Same NSN cross-reference
Reference document — Secondary reference
52-3-14Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 B1518SA?
B1518SA is a PROCESSOR,SIGNAL DATA.
What parts can replace B1518SA?
There are 2 known substitutes for B1518SA: 009-304-0025, 52-3-14. Substitute compatibility should be verified for your specific system.
What is the NSN for B1518SA?
B1518SA is cataloged in the U.S. Government catalog under NSN 4820-00-956-8748. 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.