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1503C — 1503C

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

1503C: 1503C.

The 1503C is a the manufacturer industrial component. Key specifications include drive_size: 3.50 AND 5.25, design_type: HARD DISK, unit_design: INTERNAL, power_source: EXTERNAL, interface_type: SCSI-2, data_storage_capacity: 2.00 GIGABYTES. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-012-1987, 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
MRO→ MRO_GENERAL→ 1503C
NSN: 4820-00-012-1987
NIINs: 000121987, 011352701, 013231521, 015065275
FSC: 4820 — Valves, Nonpowered
CAGE: 37239 — LUNKENHEIMER CO (USA)
SPECIFICATIONS
drive_size3.50 AND 5.25
design_typeHARD DISK
unit_designINTERNAL
power_sourceEXTERNAL
drive_quantity1
interface_typeSCSI-2
data_storage_capacity2.00 GIGABYTES
NSN4820-00-012-1987
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1503C · 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
•
VALVE OPERATION METHOD: MANUAL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY THE NOMINAL PIPE SIZE ACCOMODATED
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESSIZE 4,FIGURE 415
VALVE OPERATION METHODMANUAL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE NOMINAL PIPE SIZE ACCOMODATED
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1503C?
1503C is a 1503C. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 1503C?
1503C is cataloged in the U.S. Government catalog under NSN 4820-00-012-1987. 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.