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8551E1-2HD2 — VALVE,ROTARY,SELECTOR

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8551E1-2HD2: VALVE,ROTARY,SELECTOR.

The VALVE,ROTARY,SELECTOR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-00-012-5833, 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
8551E1-2HD2
NSN: 4820-00-012-5833
FSC: 4820 — Valves, Nonpowered
CAGE: 59524 — HERSH PACKING & RUBBER CO (USA)
SPECIFICATIONS
special_featuresALUMINUM ALLOY BODY; SYNTHETIC RUBBER SEALS; SIDE PORTED; FOUR PORTS; THD INTERNAL PIPE NPT 0.500-14; MEDIA HYDRAULIC OILS,2000 PSI WORKING PRESSURE; MANUALLY OPERATED
NSN4820-00-012-5833
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8551E1-2HD2 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESALUMINUM ALLOY BODY; SYNTHETIC RUBBER SEALS; SIDE PORTED; FOUR PORTS; THD INTERNAL PIPE NPT 0.500-14; MEDIA HYDRAULIC OILS,2000 PSI WORKING PRESSURE; MANUALLY OPERATED
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 3
4010-023Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8651 1-2HD2Reference document
Same NSN cross-reference
Reference document — Secondary reference
8551F-1/2 HD2Same 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 8551E1-2HD2?
8551E1-2HD2 is a VALVE,ROTARY,SELECTOR.
What parts can replace 8551E1-2HD2?
There are 3 known substitutes for 8551E1-2HD2: 4010-023, 8651 1-2HD2, 8551F-1/2 HD2. Substitute compatibility should be verified for your specific system.
What is the NSN for 8551E1-2HD2?
8551E1-2HD2 is cataloged in the U.S. Government catalog under NSN 4820-00-012-5833. 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.