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881894 — COVER,DIAPHRAGM

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

881894: COVER,DIAPHRAGM.

The COVER,DIAPHRAGM is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, overall_length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, overall_diameter: 1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN, surface_treatment: ANODIZE, end_item_identification: 4910-01-239-0022,SUPPORT EQUIPMENT,C-17A AIRCRAFT A. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-421-2564, 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
881894
NSN: 4810-01-421-2564
FSC: 4810 — Valves, Powered
CAGE: 99193 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - PHOENIX (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_length0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
overall_diameter1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN
surface_treatmentANODIZE
end_item_identification4910-01-239-0022,SUPPORT EQUIPMENT,C-17A AIRCRAFT A
NSN4810-01-421-2564
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 881894 · 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: 1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN
•
COLOR: GRAY/GREY
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN
OVERALL LENGTH0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
COLORGRAY/GREY
SURFACE TREATMENTANODIZE
END ITEM IDENTIFICATION4910-01-239-0022,SUPPORT EQUIPMENT,C-17A AIRCRAFT A
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 1
881894-6Same 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 881894?
881894 is a COVER,DIAPHRAGM.
What parts can replace 881894?
There is 1 known substitute for 881894: 881894-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 881894?
881894 is cataloged in the U.S. Government catalog under NSN 4810-01-421-2564. 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.