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Technical Data Sheet
4574-B ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include training_phase: VERIFY STRIKER HITS THE CORRECT AREA FOR THE LINE CUTTER, special_features: LOW VELOCITY CARTRIDGE;USES PRIMER FOR PROPELLANT;ITEM USED INDOORS FOR TRAINING PURPOSES, end_item_identification: PARACHUTE LINE CUTTER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-070-2125, 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
4574-B
NSN: 5330-01-070-2125
FSC: 5330
CAGE: 93784 — HUSCO INTERNATIONAL INC (USA)
SPECIFICATIONS
training_phaseVERIFY STRIKER HITS THE CORRECT AREA FOR THE LINE CUTTER
special_featuresLOW VELOCITY CARTRIDGE;USES PRIMER FOR PROPELLANT;ITEM USED INDOORS FOR TRAINING PURPOSES
end_item_identificationPARACHUTE LINE CUTTER
NSN5330-01-070-2125
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4574-B 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
PERIPHERAL DIAMETER: 0.747 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE AND GLASS OVERALL
JOINT TYPE: SCARF-PERIPHERAL CASE
CROSS-SECTIONAL HEIGHT: 0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
CENTER HOLE DIAMETER: 0.577 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL DIAMETER0.747 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND GLASS OVERALL
JOINT TYPESCARF-PERIPHERAL CASE
CROSS-SECTIONAL HEIGHT0.045 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.577 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
4574-BInterchangeable
interchangeable cross-reference
interchangeable
8515Interchangeable
interchangeable cross-reference
interchangeable
S84196Interchangeable
Same NIIN cross-reference
interchangeable
P91800Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4574-B?
4574-B is a RETAINER,PACKING.
What parts can replace 4574-B?
There are 4 known substitutes for 4574-B: 4574-B, 8515, S84196 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4574-B?
4574-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-070-2125. This indicates validated use in U.S. government and defense supply chains.
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