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858841-1 — COVER,GUIDE,PISTON

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

858841-1: COVER,GUIDE,PISTON.

The COVER,GUIDE,PISTON is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, overall_height: 1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN, overall_diameter: 1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, general_characteristics_item_description: QQ-A-225/8, 6061, TEMPER T6. This part is cataloged in the U.S.

Government catalog under NSN 4810-00-116-4586, 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
858841-1
NSN: 4810-00-116-4586
FSC: 4810 — Valves, Powered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_height1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
overall_diameter1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
general_characteristics_item_descriptionQQ-A-225/8, 6061, TEMPER T6
NSN4810-00-116-4586
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 858841-1 · 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
•
OVERALL DIAMETER: 1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: QQ-A-225/8, 6061, TEMPER T6
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.000 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN
OVERALL DIAMETER1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
GENERAL CHARACTERISTICS ITEM DESCRIPTIONQQ-A-225/8, 6061, TEMPER T6
MATERIALALUMINUM ALLOY
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 858841-1?
858841-1 is a COVER,GUIDE,PISTON.
What is the NSN for 858841-1?
858841-1 is cataloged in the U.S. Government catalog under NSN 4810-00-116-4586. 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.