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840850-2 — VALVE,DELIVERY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

840850-2: VALVE,DELIVERY.

The VALVE,DELIVERY is a the manufacturer industrial component. Key specifications include angle: 3.5 DEGREES NOMINAL, material: ALUMINUM ALLOY OVERALL, special_features: USED ON M158 GM,8 IN. HOW.

RM,155MM GUN RM MM, peripheral_diameter: 5.393 INCHES NOMINAL IN, center_hole_diameter: 4.369 INCHES NOMINAL IN, cross-sectional_height: 0.138 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 5330-00-822-1733, 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
840850-2
NSN: 5330-00-822-1733
NIINs: 008221733, 013881328
FSC: 5330 — Packing and Gasket Materials
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
angle3.5 DEGREES NOMINAL
materialALUMINUM ALLOY OVERALL
special_featuresUSED ON M158 GM,8 IN. HOW. RM,155MM GUN RM MM
peripheral_diameter5.393 INCHES NOMINAL IN
center_hole_diameter4.369 INCHES NOMINAL IN
cross-sectional_height0.138 INCHES NOMINAL IN
cross-sectional_thickness0.0315 INCHES NOMINAL IN
cross-sectional_shape_styleU
NSN5330-00-822-1733
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 840850-2 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL THICKNESS: 0.0315 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.138 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: U
•
ANGLE: 3.5 DEGREES NOMINAL
•
PERIPHERAL DIAMETER: 5.393 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 4.369 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.0315 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.138 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEU
ANGLE3.5 DEGREES NOMINAL
PERIPHERAL DIAMETER5.393 INCHES NOMINAL IN
SPECIAL FEATURESUSED ON M158 GM,8 IN. HOW. RM,155MM GUN RM MM
CENTER HOLE DIAMETER4.369 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY OVERALL
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 840850-2?
840850-2 is a VALVE,DELIVERY.
What is the NSN for 840850-2?
840850-2 is cataloged in the U.S. Government catalog under NSN 5330-00-822-1733. 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.