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PartsTable / COMPONENT / A38634B PIECE 8 1/2 IN
A38634B PIECE 8 1/2 IN ✓ 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 A38634B PIECE 8 1/2 IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-618-3222, 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
A38634B PIECE 8 1/2 IN
NSN: 5330-00-618-3222
FSC: 5330
CAGE: 63686 — THE WALWORTH COMPANY (USA)
SPECIFICATIONS
Part NumberA38634B PIECE 8 1/2 IN
NSN5330-00-618-3222
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A38634B PIECE 8 1/2 IN 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 WIDTH: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-24377 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: ASBESTOS AND PLASTIC POLYTETRAFLUOROETHYLENE AND PETROLATUM
•
FABRICATION METHOD: BRAIDED
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL WIDTH0.250 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.250 INCHES NOMINAL IN
SPECIAL FEATURESOMIT PETROLEUM LUBRICANT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-24377 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALASBESTOS AND PLASTIC POLYTETRAFLUOROETHYLENE AND PETROLATUM
FABRICATION METHODBRAIDED
CROSS-SECTIONAL SHAPE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
05075Interchangeable
interchangeable cross-reference
interchangeable
304528Interchangeable
interchangeable cross-reference
interchangeable
3S-5271-19 PARTInterchangeable
Same NIIN cross-reference
interchangeable
810-2177917-06- 20Interchangeable
Same NIIN cross-reference
interchangeable
A-3140 PIECE 10Interchangeable
Same NIIN cross-reference
interchangeable
810-2177917-04- 20Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A38634B PIECE 8 1/2 IN?
A38634B PIECE 8 1/2 IN is a A38634B PIECE 8 1/2 IN.
What parts can replace A38634B PIECE 8 1/2 IN?
There are 11 known substitutes for A38634B PIECE 8 1/2 IN: 05075, 304528, 3S-5271-19 PART and 8 more. Substitute compatibility should be verified for your specific system.
Is A38634B PIECE 8 1/2 IN still available?
A38634B PIECE 8 1/2 IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026