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Technical Data Sheet

99 1/2INCH — FILTER ELEMENT,FLUID

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

99 1/2INCH: FILTER ELEMENT,FLUID.

The FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.789 INCHES NOMINAL IN, outside_diameter: 2.679 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL, material_thickness: 0.389 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-012-1578, 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
99 1/2INCH
NSN: 4820-01-012-1578
FSC: 4820 — Valves, Nonpowered
CAGE: 14652 — UNITED BRASS WORKS, INC. DBA UNITED BRASS WORKS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.789 INCHES NOMINAL IN
outside_diameter2.679 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness0.389 INCHES NOMINAL IN
end_item_identificationTATICAL WATER PURIFICATION SYSTEM (TWPS) NSN 4610-01-488-9656
part_name_assigned_by_controlling_agency1-3/4" ZINC FINISH MEDIUM SPLIT LOCK WASHER
NSN4820-01-012-1578
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 99 1/2INCH · 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 99 1/2INCH?
99 1/2INCH is a FILTER ELEMENT,FLUID.
What is the NSN for 99 1/2INCH?
99 1/2INCH is cataloged in the U.S. Government catalog under NSN 4820-01-012-1578. 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.