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A6974 — CYLINDER,FUEL SERVICING UNIT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A6974: CYLINDER,FUEL SERVICING UNIT.

The CYLINDER,FUEL SERVICING UNIT is a the manufacturer industrial component. Key specifications include dial_window: NOT INCLUDED, overall_length: 0.187 INCHES NOMINAL IN, overall_diameter: 0.687 INCHES NOMINAL IN, end_item_identification: 4930001122432, general_characteristics_item_description: 34.38 IN.LG,BORE 3 IN.,STROKE 22 IN.,OPERATING PRESSURE 3000 PSI MAX IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-421-6698, 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
A6974
NSN: 5330-00-421-6698
NIINs: 004216698, 011333545, 011922594
FSC: 5330 — Packing and Gasket Materials
CAGE: 72914 — GRIMES AEROSPACE COMPANY (USA)
SPECIFICATIONS
dial_windowNOT INCLUDED
overall_length0.187 INCHES NOMINAL IN
overall_diameter0.687 INCHES NOMINAL IN
end_item_identification4930001122432
general_characteristics_item_description34.38 IN.LG,BORE 3 IN.,STROKE 22 IN.,OPERATING PRESSURE 3000 PSI MAX IN
NSN5330-00-421-6698
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A6974 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: 0.015 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A MAXIMUM OVERALL
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STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
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OUTSIDE DIAMETER: 3.422 INCHES MINIMUM AND 3.454 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 3.046 INCHES MINIMUM AND 3.078 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.015 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
HARDNESS RATING50.0 SHORE DUROMETER A MAXIMUM OVERALL
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER3.422 INCHES MINIMUM AND 3.454 INCHES MAXIMUM IN
APERTURE DIAMETER3.046 INCHES MINIMUM AND 3.078 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR 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 A6974?
A6974 is a CYLINDER,FUEL SERVICING UNIT.
What is the NSN for A6974?
A6974 is cataloged in the U.S. Government catalog under NSN 5330-00-421-6698. This indicates validated use in U.S. government and defense supply chains.
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