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S38421-009BAK1S — PACKING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S38421-009BAK1S: PACKING ASSEMBLY.

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.103 INCHES NOMINAL IN, joint_type: SCARF-BEARING SURFACE BOTTOM RING, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, inside_diameter: 0.203 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN, outside_diameter: 0.329 INCHES NOMINAL IN, cross-sectional_shape_style: O-RING TOP RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-395-5287, 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
S38421-009BAK1S
NSN: 5330-00-395-5287
NIINs: 003955287, 010889341
FSC: 5330 — Packing and Gasket Materials
CAGE: 09257 — TRELLEBORG SEALING SOLUTIONS US, INC. (USA)
SPECIFICATIONS
height0.103 INCHES NOMINAL IN
joint_typeSCARF-BEARING SURFACE BOTTOM RING
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
inside_diameter0.203 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
outside_diameter0.329 INCHES NOMINAL IN
cross-sectional_shape_styleO-RING TOP RING
NSN5330-00-395-5287
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S38421-009BAK1S 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
•
TEMP RATING: -70.0 FAHRENHEIT AND 600.0 FAHRENHEIT DEGF
•
INTERMEDIATE RING QUANTITY: 1
•
OUTSIDE DIAMETER: 0.352 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE INTERMEDIATE RING
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR BOTTOM RING
TECHNICAL CHARACTERISTICS
TEMP RATING-70.0 FAHRENHEIT AND 600.0 FAHRENHEIT DEGF
INTERMEDIATE RING QUANTITY1
OUTSIDE DIAMETER0.352 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE INTERMEDIATE RING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE BOTTOM RING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE TOP RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR BOTTOM RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR TOP RING
CROSS-SECTIONAL SHAPE STYLESPECIAL INTERMEDIATE RING
INSIDE DIAMETER0.212 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
082-59990-009MSReference document
Same NSN cross-reference
Reference document — Secondary reference
7009MS160-5708Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST7M254-009E2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S38421-009BAK1S?
S38421-009BAK1S is a PACKING ASSEMBLY.
What parts can replace S38421-009BAK1S?
There are 3 known substitutes for S38421-009BAK1S: 082-59990-009MS, 7009MS160-5708, ST7M254-009E2. Substitute compatibility should be verified for your specific system.
What is the NSN for S38421-009BAK1S?
S38421-009BAK1S is cataloged in the U.S. Government catalog under NSN 5330-00-395-5287. This indicates validated use in U.S. government and defense supply chains.
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