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35B138-1 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

35B138-1: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, inner_groove_depth: 0.188 INCHES NOMINAL IN, inner_groove_width: 0.312 INCHES NOMINAL IN, peripheral_diameter: 4.625 INCHES NOMINAL IN, center_hole_diameter: 5.125 INCHES NOMINAL IN, cross-sectional_height: 0.438 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-932-4850, 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
35B138-1
NSN: 5330-00-932-4850
FSC: 5330 — Packing and Gasket Materials
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
inner_groove_depth0.188 INCHES NOMINAL IN
inner_groove_width0.312 INCHES NOMINAL IN
peripheral_diameter4.625 INCHES NOMINAL IN
center_hole_diameter5.125 INCHES NOMINAL IN
cross-sectional_height0.438 INCHES NOMINAL IN
cross-sectional_shape_styleSPECIAL
NSN5330-00-932-4850
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 35B138-1 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 HEIGHT: 0.438 INCHES NOMINAL IN
•
INNER GROOVE DEPTH: 0.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SPECIAL
•
PERIPHERAL DIAMETER: 4.625 INCHES NOMINAL IN
•
INNER GROOVE WIDTH: 0.312 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 5.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.438 INCHES NOMINAL IN
INNER GROOVE DEPTH0.188 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESPECIAL
PERIPHERAL DIAMETER4.625 INCHES NOMINAL IN
INNER GROOVE WIDTH0.312 INCHES NOMINAL IN
CENTER HOLE DIAMETER5.125 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 35B138-1?
35B138-1 is a PACKING,PREFORMED.
What is the NSN for 35B138-1?
35B138-1 is cataloged in the U.S. Government catalog under NSN 5330-00-932-4850. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.