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Technical Data Sheet
A9950 ✓ 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 SHAFT,STRAIGHT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND COTTON OVERALL, outside_diameter: 4.805 INCHES MINIMUM AND 4.821 INCHES MAXIMUM IN, special_features: ITEM IS A 15" SECTION OF 0.5" SQUARE BELTED RUBBER PACKING TO PACK RAM-ROD, style_designator: CIRCULAR, aperture_diameter: 4.242 INCHES MINIMUM AND 4.258 INCHES MAXIMUM IN, cross-sectional_thickness: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-083-2141, 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
A9950
NSN: 5330-01-083-2141
FSC: 5330
CAGE: 89925 — ALTEC INDUSTRIES INC EASTERN DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND COTTON OVERALL
outside_diameter4.805 INCHES MINIMUM AND 4.821 INCHES MAXIMUM IN
special_featuresITEM IS A 15" SECTION OF 0.5" SQUARE BELTED RUBBER PACKING TO PACK RAM-ROD
style_designatorCIRCULAR
aperture_diameter4.242 INCHES MINIMUM AND 4.258 INCHES MAXIMUM IN
cross-sectional_thickness0.375 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationA9950 FSCM 89925 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-083-2141
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A9950 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
STYLE DESIGNATOR: CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATION: A9950 FSCM 89925 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: RUBBER SYNTHETIC AND COTTON OVERALL
CROSS-SECTIONAL THICKNESS: 0.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
APERTURE DIAMETER: 4.242 INCHES MINIMUM AND 4.258 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 4.805 INCHES MINIMUM AND 4.821 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESITEM IS A 15" SECTION OF 0.5" SQUARE BELTED RUBBER PACKING TO PACK RAM-ROD
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONA9950 FSCM 89925 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER SYNTHETIC AND COTTON OVERALL
CROSS-SECTIONAL THICKNESS0.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER4.242 INCHES MINIMUM AND 4.258 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.805 INCHES MINIMUM AND 4.821 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
LA1559Interchangeable
interchangeable cross-reference
interchangeable
1166-1Interchangeable
interchangeable cross-reference
interchangeable
865757R91Interchangeable
interchangeable cross-reference
interchangeable
280212Interchangeable
interchangeable cross-reference
interchangeable
BX102626Interchangeable
interchangeable cross-reference
interchangeable
40413Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A9950?
A9950 is a SHAFT,STRAIGHT.
What parts can replace A9950?
There are 15 known substitutes for A9950: LA1559, 1166-1, 865757R91 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A9950?
A9950 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-083-2141. This indicates validated use in U.S. government and defense supply chains.
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