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8974-005-340 — 8974-005-340

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8974-005-340: 8974-005-340.

The 8974-005-340 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-453-9541, 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
8974-005-340
NSN: 5330-01-453-9541
FSC: 5330 — Packing and Gasket Materials
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
Part Number8974-005-340
NSN5330-01-453-9541
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8974-005-340 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
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CROSS-SECTIONAL THICKNESS: 0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-24716 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
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CROSS-SECTIONAL SHAPE STYLE: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
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GAGE RING OUTSIDE DIAMETER: 4.562 INCHES MINIMUM AND 4.562 INCHES MINIMUM AND 4.624 INCHES MAXIMUM4.624 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 4.218 INCHES MINIMUM AND 4.218 INCHES MINIMUM AND 4.249 INCHES MAXIMUM4.249 INCHES MAXIMUM IN
•
MATERIAL: GRAPHITE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM0.135 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-24716 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLEMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
GAGE RING OUTSIDE DIAMETER4.562 INCHES MINIMUM AND 4.562 INCHES MINIMUM AND 4.624 INCHES MAXIMUM4.624 INCHES MAXIMUM IN
APERTURE DIAMETER4.218 INCHES MINIMUM AND 4.218 INCHES MINIMUM AND 4.249 INCHES MAXIMUM4.249 INCHES MAXIMUM IN
MATERIALGRAPHITE OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
88319-12 ITEM 8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 8974-005-340?
8974-005-340 is a 8974-005-340.
What parts can replace 8974-005-340?
There is 1 known substitute for 8974-005-340: 88319-12 ITEM 8. Substitute compatibility should be verified for your specific system.
What is the NSN for 8974-005-340?
8974-005-340 is cataloged in the U.S. Government catalog under NSN 5330-01-453-9541. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.