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7526221 — FLANGE,GLAND,VALVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7526221: FLANGE,GLAND,VALVE.

The FLANGE,GLAND,VALVE is a the manufacturer industrial component. Key specifications include length: 0.775 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, nut_style: HEXAGON, valve_size: 16.000 INCHES IN, flange_shape: OVAL, thread_class: 3G G. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-643-8021, 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
7526221
NSN: 5330-01-643-8021
NIINs: 016438021, 016438069, 016439822, 016439870, 016439975
FSC: 5330 — Packing and Gasket Materials
CAGE: 53712 — WESTFIELD PRECISION PRODUCTS INC WEST COAST GEAR PRODUCTS DIV (USA)
SPECIFICATIONS
length0.775 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
nut_styleHEXAGON
valve_size16.000 INCHES IN
flange_shapeOVAL
thread_class3G G
hole_diameter1.060 INCHES NOMINAL ALL HOLES IN
overall_width10.94 INCHES NOMINAL IN
thread_length1.312 INCHES NOMINAL IN
thread_seriesACME
aperture_width4.880 INCHES NOMINAL IN
overall_height3.310 INCHES MINIMUM AND 3.330 INCHES MAXIMUM IN
NSN5330-01-643-8021
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7526221 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 HEIGHT: 0.440 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 24396A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 2.750 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.880 INCHES NOMINAL IN
•
MATERIAL: PLASTIC TETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.440 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION24396A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL A
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER2.750 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.880 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING
END ITEM IDENTIFICATION16INCH COPPER-NICKEL MOTOR OPERATED GATE VALVE IN
MATERIALPLASTIC TETRAFLUOROETHYLENE OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7526221?
7526221 is a FLANGE,GLAND,VALVE.
What is the NSN for 7526221?
7526221 is cataloged in the U.S. Government catalog under NSN 5330-01-643-8021. 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.